RACE RULES
Halong Bay Heritage Marathon 2026

Abbreviations:

OC: Organizing Committee
Athlete: Participating athlete/runner
COT (Cut-off Time): The time limit for completing a race distance
BIB: The race number assigned to an athlete participating in the event
Sub-: A race performance faster than a specified time threshold
DNF: Did Not Finish
DQ: Disqualification / race result disqualified
N/A: Not Applicable
Citizen ID: Vietnamese Citizen Identification Card

Article 1: Race Name and Objectives

1.1. Race Name

Vietnamese: Giải Marathon Quốc tế Di sản Vịnh Hạ Long
English: Halong Bay Marathon – Heritage Race
Abbreviation: HBHM

1.2. Objectives

The Halong Bay Heritage Marathon aims to widely promote, both domestically and internationally, the image of Vietnam and the Vietnamese people, the beautiful city of Ha Long and Ha Long Bay – a natural wonder honored by UNESCO with recognition as a World Natural Heritage Site on three occasions – as well as the distinctive cultural characteristics of Quang Ninh Province.
The Halong Bay Heritage Marathon aims to attract broad support from communities, society and businesses, contributing to tourism development and economic growth in the province.
The Halong Bay Heritage Marathon must be carefully prepared and organized in a safe, economical and effective manner; ensure political security, social order and safety, environmental protection, and demonstrate the sporting spirit of the race in order to achieve the stated objectives and requirements.
The Halong Bay Heritage Marathon is organized and operated to a high professional standard, with national-scale stature and an international model.

Article 2: Date, Venue and Race Distances

2.1. Race Date

November 22, 2026

2.2. Venue

Start / Finish: To be announced in the General Information, specifically as follows:
Start for all distances and finish for the 5 km / 10 km distances: Tran Quoc Nghien Street, October 30 Square area, Hon Gai, Ha Long City.
Finish for the 21 km / 42 km distances: Tran Quoc Nghien Street, Dolphin Palace area, Hon Gai, Ha Long City.

2.3. Distances

195 km (also referred to as Full Marathon, FM, Marathon, 42 km)
097 km (also referred to as Half Marathon, HM, 21 km)
10 km
5 km

Article 3: Competition Eligibility

3.1. 42 km Marathon (Full Marathon)

3.1.1. Competition Age

Athletes participating in the marathon distance must be at least 18 years old, as specifically announced in the General Information. Any underage athlete found participating in the marathon will be disqualified (DQ) and removed from the race.

3.1.2. Awards

Athletes participating in the Marathon distance are eligible for overall awards and age-group awards, but may receive only the single highest-value award among those they qualify for.

3.1.2.1. All athletes properly registered for the Marathon distance who do not violate the Race Rules are eligible for consideration for the overall awards.

3.1.2.2. Athletes are divided into the following age groups:

1. Under 30
1. 30–39
1. 40–49
1. 50 and above

3.1.2.3. The Organizing Committee has the right to require athletes to present a Citizen ID Card or other identification document to verify age before an age-group award is presented.

3.2. 21 km Half Marathon

3.2.1. Competition Age

Athletes participating in the half marathon must be at least 16 years old, as specifically announced in the General Information. Any underage athlete found participating will be disqualified (DQ) and removed from the race.

3.2.2. Awards
Athletes participating in the half marathon are eligible for overall awards and age-group awards, but may receive only the single highest-value award among those they qualify for.

3.2.2.1. All athletes properly registered for the half marathon who do not violate the Race Rules are eligible for consideration for the overall awards.

3.2.2.2. Athletes are divided into the following age groups:

1. Under 30
1. 30–39
1. 40–49
1. 50 and above

3.2.2.3. The Organizing Committee has the right to require athletes to present a Citizen ID Card or other identification document to verify age before an age-group award is presented.

3.3. 10 km Distance

3.3.1. Competition Age

Athletes participating in the 10 km distance must be at least 12 years old, as specifically announced in the General Information. Any underage athlete found participating in the race will be disqualified (DQ) and removed from the race.

3.3.2. Awards

Athletes participating in the 10 km distance will be eligible for overall awards.

3.4. 5 km Distance

3.4.1. Competition Age

Athletes participating in the 5 km distance must be at least 7 years old as of the date specifically announced in the General Information, except for young children running together with their parents. Any athlete who does not meet this requirement and is found participating in the race will be disqualified (DQ) and removed from the race.

3.4.2. Awards

Athletes participating in the 5 km distance will be eligible for overall awards. The Organizing Committee has the right to require athletes to present a Citizen ID Card or other lawful identification document (a birth certificate for children) to verify age before an award is presented.

3.5. Legal Parent/Guardian

Minors participating in the race must have a legal parent/guardian as stipulated in Article 8.1.

Article 4: Competition Time

4.1. Cut-off Time (COT) by Distance

Distance	COT
42 km – Full Marathon	6.5 h
21 km – Half Marathon	3.5 h
10 km	2 h
5 km	1.5 h

4.2. Start Area Opening and Closing Time

Athletes must be present in the start area within the time specified by the Organizing Committee.
Athletes arriving more than 15 minutes after the official start time will not be allowed to enter the start area and will be recorded as DNS.

4.3. Cut-off Time (COT) Regulations

4.3.1. All participating athletes must complete the course within the specified Cut-off Time (COT), including intermediate COTs for each section and the overall COT (the full-course COT) at the finish line. Intermediate and overall COTs apply equally to athletes starting in different pens/waves.

4.3.2. Athletes who fail to complete any section within the applicable COT will be recorded as Did Not Finish (DNF). Their BIB will be marked DNF, they will be required to leave the course, and they will not receive a finisher medal, finisher items, or any other completion items (if applicable).

4.3.3. The Organizing Committee will close each road/course section after the relevant Cut-off Time has elapsed.

4.3.4. All Organizing Committee services, including but not limited to hydration, medical support, pacing and photography, will end after the Cut-off Time for each section.

4.3.5. The specific COT for each distance will be announced annually by the Organizing Committee.

Article 5: Timing and Results

5.1. Gun Time and Electronic Chip Time

5.1.1. Gun time: the time measured from the official start signal until the athlete crosses the timing mat at the finish line.

5.1.2. Chip time: the time measured from when the athlete crosses the timing mat at the start line until the athlete crosses the timing mat at the finish line.

5.2. Result Calculation Rules

5.2.1. The official race time recorded for all athletes is electronic chip time. Times will be rounded up to the next whole second.

5.2.2. Overall awards will be determined based on gun time. Age-group awards will be determined based on electronic chip time.

5.2.3. Any questions or disputes concerning race results must be submitted in writing to the Organizing Committee within 24 hours after the race concludes. For complaints submitted later, the Organizing Committee reserves the right to review the matter and consider the seriousness of the alleged violation before making an appropriate decision.

Article 6: Competition Rules

6.1. Course Rules

6.1.1. Athletes must strictly follow the course designated by the Organizing Committee. An athlete who leaves the course without permission from a course referee will be deemed to have committed a violation and will be disqualified (DQ). Any athlete who shortens the official route (“cuts the course”) for any reason will be disqualified. Course cutting may be detected through observations by referees or by monitoring and video equipment. The Organizing Committee’s decision is final.

6.1.2. Athletes must run within the lane/portion of the roadway announced and directed by the Organizing Committee. Any athlete found running outside the announced lane/portion of the roadway or contrary to Organizing Committee instructions will be disqualified (DQ).

6.2. BIB Rules

6.2.1. Athletes must wear the BIB issued to them. The BIB number must be attached to the front of the athlete’s body and must remain visible and worn throughout the race.

6.2.2. Any swapping, sale, gifting or transfer of a race BIB to another person without the Organizing Committee’s permission is considered a violation of the Race Rules. The Organizing Committee may deny access to the start area, stop an athlete from competing, and refuse to recognize the result of any athlete wearing a BIB that does not match the Organizing Committee’s registration list. The Organizing Committee may remove an athlete from the start area or course if the athlete is found using a BIB not issued by the Organizing Committee.

6.2.3. Any athlete found using a BIB not issued by the Organizing Committee will be disqualified from the race.

6.2.4. If the Organizing Committee discovers that an athlete competed using another person’s BIB, both the athlete and the registered owner of that BIB will have their results canceled.

6.2.5. If the Organizing Committee discovers that an athlete is wearing more than two Organizing Committee timing devices during the race, the athlete will be considered ineligible. The Organizing Committee has the right to temporarily confiscate the athlete’s BIB and return it at the referee area after the race ends.

6.3. Electronic Timing Chip Rules

6.3.1. The Organizing Committee provides an electronic timing chip to all athletes for result measurement. Athletes are responsible for safeguarding their own timing chip to ensure that their results are recorded.

6.3.2. The Organizing Committee is not responsible for any case in which an athlete’s result cannot be accurately calculated because the timing chip is damaged after being handed over to the athlete or the athlete’s representative.

6.3.3. Athletes must cross the start timing mat, all checkpoint timing mats on the course, and the finish timing mat. An athlete whose signal is not detected by all required electronic timing mats will be considered not to have completed the race and their result will not be recognized.

6.4. Finish and Completion of the Race Distance

Athletes must cross the timing mat at the finish line to be considered to have completed the race. After finishing, athletes must follow the flow and directions established by the Organizing Committee to the medal collection area and other areas for finisher items (if applicable), and then follow instructions to the recovery and post-race food areas. Athletes who fail to comply with post-race flow instructions may be asked to leave these areas.

6.5. Course Changes

The Organizing Committee has the right to change the race course if necessary. Any course changes will be communicated promptly to athletes and relevant parties.

6.6. Athlete Information Rules

Athlete information, including full name, date of birth, Citizen ID/passport number, gender and email, will be recorded based on the athlete’s identity document (Citizen ID/Passport) or another lawful document issued by a competent authority. If an athlete’s gender cannot be determined, the Organizing Committee has the right to make the final determination.
Any athlete who registers information or wears a BIB that does not match the information on their identity documents, if detected, will be disqualified (DQ) and removed from the event.

Article 7: Awards

7.1. Award Structure

The Organizing Committee determines and announces the award structure for each race season.

7.2. Timing Used for Award Determination

Overall awards are determined based on gun time, measured from the official start signal until the athlete crosses the finish line.
Athletes are responsible for ensuring the accuracy of their identity information in accordance with Article 6.6.

7.3. Verification Process for Leading Finishers

The first finishers in each distance will receive temporary ranking cards. After the athlete completes full information verification with the referee team, and the referee team confirms that the information is valid and matches the athlete’s registration information with the Organizing Committee, the athlete will be notified and receive the official award.

7.4. Receiving Awards

Athletes officially announced as award winners will receive trophies and awards in cash, in kind and/or other services (if any). Cash awards are governed by Article 7.1.
Cash awards will be subject to personal income tax deductions in accordance with current Vietnamese tax law.
Awards in kind, shopping cards/vouchers and/or service vouchers with monetary value cannot be exchanged for cash.
The list and structure of awards will be publicly announced on the Race’s official information channels. The deadline for receiving and completing award-claim documentation will follow the timeline stipulated by the Organizing Committee and officially communicated to the athlete from the date the email is sent.

The Organizing Committee will send the award notification and instructions for completing award-claim documentation directly to the email address used by the athlete to register for the Race.

7.5. Complaints and Handling of Violations

Any questions or complaints concerning awards must be submitted in writing to the Organizing Committee within 24 hours after the awards are announced.
The Organizing Committee has the right to cancel the result of any award-winning athlete found to have violated the Race Rules, and the athlete is required to return in full all awards already received from the Organizing Committee.

7.6. Award Presentation

The award ceremony will be held at a time announced by the Organizing Committee for each race season after the referee team has accurately verified the information of the award winners.
Cash and in-kind awards will be transferred/delivered to athletes after the Organizing Committee completes its verification of race results.
To receive an award, an award-winning athlete must complete the following procedures:
- Complete the award receipt form.
- Submit a copy of the Citizen ID Card/passport.
- Sign the personal income tax undertaking (Form 02/CK-TNCN).
If an athlete fails to provide any required document in full, the Organizing Committee has the right to withhold the award and require the athlete to supplement the missing documents within the prescribed period. If the deadline specified in the Organizing Committee’s notice passes, the right to receive the award will expire.
For athletes who do not have a personal bank account or are under 18 years of age, the Organizing Committee will transfer cash awards only to an authorized person who provides all valid documents, including: a power of attorney certified by a competent authority; a notarized copy of the authorized person’s Citizen ID/passport; and the authorized person’s personal bank account information.

Article 8: Registration and Confirmation

8.1. Registration Age

8.1.1. Registration age is governed by the requirements for each race category in Article 3.

8.1.2. Legal Parent/Guardian:

Minors (children) registering to compete must have a legal parent/guardian.
The legal parent/guardian must sign a guarantee/undertaking allowing the child to participate and assumes full responsibility for the child’s safety and any risks that may arise.

8.2. Other Registration Rules

Athletes residing overseas must register online on the race website. If an athlete experiences difficulties or technical problems with direct registration, the Organizing Committee will provide support through other registration and payment methods.
An athlete who registers twice for the same Halong Bay International Heritage Marathon; uses a false name; or provides a false date of birth, gender, photo, etc. will be deemed ineligible to participate in the race.
Registered athletes will receive a race kit including: BIB number, electronic timing chip, T-shirt, bag and race guide materials.
If an individual acts as a representative and/or is authorized to register and/or collect a race kit on behalf of another individual or group of individuals, that person must confirm that they have been duly authorized to act on behalf of such individual(s) and/or group for the registration and race-kit collection. Registration through a representative or authorized person remains fully subject to these Race Rules as if registration were completed directly.

8.3. Registration Fee Refunds

Once registration and payment of the participation fee have been completed, athletes may not request a refund of any registration-related fees for any reason. However, athletes may transfer their entry or change race distance in accordance with the regulations or announcements of the Organizing Committee, with conversion/transfer fees to be announced by the Organizing Committee for each race season.

8.4. Changes to Registration Information and Transfer of Entry

8.4.1. Information athletes may change themselves

Within the period during which the Organizing Committee permits changes to registration information, athletes may modify information from their original registration.

Athletes may review their registration information and make permitted changes at https://member.vietnamheritagemarathon.com, as follows:

Information athletes may change themselves free of charge:
- Personal information: Phone number, shirt size, gender, date of birth, height, weight, personal best, nationality, address, club, emergency contact.
- Downgrading distance: If an athlete changes to a shorter distance than originally registered, the athlete may make the change independently and no fee will be charged. The athlete will not receive a refund of any difference if the new distance has a lower registration fee than the original distance.
Information/actions athletes may change themselves subject to a fee:
- Entry transfer: If an athlete wishes to transfer the registration to another athlete, the transferee must comply with the rules on personal information changes or entry transfers announced by the Organizing Committee for each race season. The transfer fee is determined by the Organizing Committee annually.
- Upgrading distance: Athletes may independently upgrade their registered distance in the system. The athlete must pay the difference in registration fees between the two distances.

8.4.2. The Organizing Committee will assist athletes in changing the following information:

Athletes cannot independently change personal identification information, including: name, email and Citizen ID/Passport number. If an athlete made an error when submitting the original registration, the athlete must contact the Organizing Committee at halongrace@dhavietnam.vn and submit a request for assistance within the permitted information-update period.

8.5. The Organizing Committee is not responsible for delays where registration applications cannot be processed due to Internet connection errors and/or errors by third-party payment-processing organizations. Registration is considered valid only based on the time the payment is reflected in the Organizing Committee’s account.

8.6. Article 8.5 also applies to discounts and promotional programs offered by the Organizing Committee.

Article 9: Compliance with Security Laws, Course Regulations and Athlete Personal Property

9.1. Athletes undertake to comply with all laws and regulations of the Socialist Republic of Vietnam.

9.2. Athletes must comply with World Athletics anti-doping regulations and are strictly prohibited from using or attempting to use substances included on the prohibited list published by the World Anti-Doping Agency (WADA). In coordination with the Athletics Integrity Unit (AIU) of World Athletics, the Organizing Committee may conduct doping sample collection before, during and after the race.

Selected athletes are required to cooperate fully with doping control officers and provide samples upon request. Any refusal, evasion or falsification in relation to doping control may result in immediate disqualification of the athlete’s race result and may also lead to other disciplinary measures in accordance with World Athletics regulations.

9.3. By participating in the race, an athlete confirms that they are physically fit to participate in the registered distance and to complete it within the time required by the Organizing Committee. The athlete confirms that they understand their own health limitations and can recognize when to stop physical activity before injury may occur.

9.4. If an athlete cannot complete the course within the prescribed time limit, the Organizing Committee has the right to require the athlete to stop the race, and the athlete will not be entitled to any compensation, including financial and/or other compensation, in connection with that requirement.

9.5. Athletes understand all risks associated with marathon running and the race course, including but not limited to: trips and falls, collisions with other participants, effects of weather, traffic and course conditions, ranging from minor injuries to serious injuries or even death. Athletes are solely responsible for all matters relating to their own safety and health throughout the course and agree to release the Race Organizing Committee from liability.

9.6. The Organizing Committee will purchase public liability insurance and personal insurance for athletes participating in the race, except for athletes over 80 years of age or those with underlying medical conditions as specified in Article 10. To protect their rights and benefits, athletes must provide complete and accurate personal information (full name, date/month/year of birth, ID/Citizen ID/passport number) as submitted to the Organizing Committee during registration. If information provided by the athlete is incomplete or inaccurate, the Organizing Committee and the insurance company may refuse liability for payment in the event of an incident.

9.7. Athletes are responsible for carefully studying the race course before official race day and bear full responsibility if they take the wrong route, resulting in failure to complete the course or non-recognition of their result.

9.8. Athletes must comply with the instructions of course security personnel, volunteers, medical staff, security forces and traffic police throughout the course. Athletes must give priority and make way for medical staff, ambulances and other emergency situations arising during the race.

9.9. Athlete Personal Items: Athletes may deposit personal belongings in a bag or backpack at the Organizing Committee’s baggage-drop area. The Organizing Committee does not accept valuables for safekeeping (such as phones, cash, jewelry, expensive items, etc.).

9.10. The Organizing Committee is not responsible for losses arising from: – Illness or accidents (including emergency treatment) as stipulated in Article 10; – Loss of or damage to personal property; – Late arrival due to difficulties and/or incidents involving public transportation or due to road conditions.

Article 10: Medical Regulations

10.1. Athletes participating in the event must sign a medical liability waiver.

10.2. The Organizing Committee has the right to stop an athlete’s race if a medical issue is detected, including but not limited to the following conditions:

Cardiovascular disease/conditions
Respiratory disease/conditions
Central nervous system disorders
Injury
Thermoregulatory disorders
Fluid and electrolyte imbalance
Altered level of consciousness
Seizures
Pregnancy

10.3. When requested by the Organizing Committee to leave the course for medical reasons, an athlete must strictly comply. Athletes who fail to comply will have their BIB revoked and will be disqualified (DQ). The athlete will not be entitled to any compensation, including financial and/or other compensation, in connection with such requirement.

10.4. The Organizing Committee provides first aid or professional medical care for injuries, illnesses or accidents that occur and, where necessary, will transfer the patient to the nearest hospital.

10.5. Athletes admitted to hospital are responsible for paying in full all costs of medical care and treatment charged by the medical facility.

Article 11: Prohibited Conduct

The Organizing Committee has the right to remind, warn or prohibit an athlete from participating in the race and/or prohibit the athlete from continuing after the race has begun if the athlete is found to have violated these Race Rules and the regulations below. Violating athletes will be disqualified (DQ).

11.1. Athletes may not use any wheeled means of transport while on the course (for example skateboards, strollers, roller shoes, bicycles, motorcycles, cars, etc.).

11.2. Athletes may not use foods or pharmaceuticals included on the prohibited-substance list published by the World Anti-Doping Agency (WADA). Athletes may not use stimulants, narcotics or drugs intended to increase feelings of excitement/euphoria during competition.

11.3. Athletes may not receive any assistance other than assistance designated by the Organizing Committee (such as water, nutrition, pacing assistance by a person not wearing an Organizing Committee BIB, etc.).

11.4. Athletes may not bring pets with them while racing. Athletes are strictly prohibited from littering or engaging in conduct that pollutes the environment at the start area, finish area or on the course.

11.5. Athletes may not engage in conduct or speech involving harassment, incitement of crowds, rioting, violation of law, damage or harm to the reputation of the race, sexual harassment, or insults toward third parties.

11.6. Athletes may not bring to the event items inappropriate for the race; weapons, clubs, sharp objects capable of injuring or killing others; or bulky items that may affect safety on the course.

11.7. Athletes may not bring to the race documents or leaflets containing content outside the event program, content opposing or violating the laws of the State and people of Vietnam, content contrary to the policies of the Party and the State, or content inconsistent with Vietnamese customs and traditions.

11.8. Athletes are prohibited from carrying flags that are not recognized by the United Nations and Vietnam as the national flag of a country, or flags containing politically or diplomatically sensitive elements, while participating in the race.

11.9. Athletes may not wear clothing with offensive imagery, imagery inconsistent with Vietnamese customs and traditions, imagery opposing or violating the laws of the State and people of Vietnam, or imagery contrary to the policies of the Party and the State. Athletes may not run with their entire face covered or shirtless, and may not wear clothing or costumes that could cause them to be mistaken for members of the Organizing Committee.

11.10. Athletes may not climb over barriers installed by the Organizing Committee on the course or in the start/finish areas. An athlete who deliberately crosses the finish line for a second or subsequent time will be considered DQ.

11.11. Athletes may not violate current traffic laws within the course area. Any violating athlete bears full responsibility in accordance with Vietnamese law and must compensate the Organizing Committee for any resulting damage (if any).

11.12. Foreign athletes are responsible for making proper declarations and clearly stating that their purpose for entering Vietnam is to participate in the Race when applying for a visa and completing entry procedures. Athletes are also responsible for informing the Organizing Committee of the address of the hotel where they will temporarily stay during their participation in the Race.

11.13. Athletes may not engage in activities that delay or affect the race, such as jumping/dancing, changing clothes, playing musical instruments, fundraising, requesting signatures/autographs, etc. Athletes may not obstruct the race by failing to comply with Organizing Committee instructions. Athletes may not urinate/defecate in unauthorized locations.

Article 12: Postponement, Cancellation and Force Majeure

12.1. In all cases where the race is postponed or canceled, registration fees paid by registered athletes will not be refunded.

12.2. Once registration and payment of the race participation fee have been completed, the athlete will not be entitled to a refund of such fee for any reason.

12.3. In the event of adverse weather or force majeure circumstances beyond reasonable control that require the race to be postponed or canceled, the Organizing Committee will notify athletes of the force majeure event and the postponement and will also announce the rescheduled event date.

In such case, the participation fee will be carried forward and preserved for the rescheduled event.

Article 13: Image and Media Rights

13.1. Copyright in any articles, recordings, images, videos and data relating to the Race, and the right to use such information on the official website, social media pages and in media and press for race marketing and promotional purposes, belongs to the Organizing Committee.

13.2. The above rights include, but are not limited to, names and information such as age and address (hometown, province, city) of participants mentioned in articles related to the event.

Article 14: Personal Data Protection

14.1. By ticking the box agreeing to the Race Rules in order to complete registration and payment of the participation fee, the athlete simultaneously agrees to the Race’s Personal Data Protection Policy.

14.2. The Race’s Personal Data Protection Policy is published on the official race website or communicated to athletes through other communication channels deemed appropriate by the Organizing Committee.

14.3. The Organizing Committee has the right to change, amend, adjust or supplement this Personal Data Protection Policy at any time. Notice of any amendments to the Personal Data Protection Policy will be updated on the race website and/or through other communication channels deemed appropriate by the Organizing Committee. The Organizing Committee recommends that athletes regularly review this Personal Data Protection Policy to stay updated on changes and remain informed about how the Organizing Committee protects athletes’ personal data. An athlete’s registration and/or payment of the participation fee is deemed acceptance of the Organizing Committee’s Personal Data Protection Policy together with any related amendments and supplements.

Article 15: Competition Laws and Rules

All matters concerning competition laws and competition format are governed by these Race Rules and the rules of the Association of International Marathons and Distance Races (AIMS), together with the applicable athletics rules.

Website: http://aims-worldrunning.org

Article 16: Race Funding

Funding for the Halong Bay International Heritage Marathon is sourced from socialized/non-state resources and managed by DHA Company.

Article 17: Commendation and Discipline

17.1. The Organizing Committee will commend athletes who comply well with the Race Rules and achieve outstanding results during competition.

17.2. For athletes who violate the Race Rules, depending on the seriousness of the violation, the Organizing Committee will impose appropriate disciplinary measures ranging from reminders and warnings to suspension from the ongoing event or prohibition from participating in the race for a number of subsequent years.

Article 18: Implementation Provisions

18.1. To ensure race safety, the Organizing Committee will apply these Race Rules throughout the event to all athletes. Persons who do not comply with the Race Rules will be considered ineligible to participate in the race.

18.2. The Organizing Committee has the right to change the terms and conditions and race participation rules in emergency situations without prior notice.

Terms and Conditions

RACE RULES Halong Bay Heritage Marathon 2026