Race Rules

  • Participants of all race distances must be at least 18 years of age on race day. Age is calculated by 2020 minus your birth year.
  • Race briefing is on Friday 31st January 2020 at the race venue, and is MANDATORY for 100km and 50km runners to attend. Runner need to check-in with the bib number. In case of non-attendance, runners will receive a time penalty of 30 minutes.
    • 17:30 – 18:30 English language briefing.
    • 18:30 – 19:00 Thai language briefing.
  • Runner must stay on the marked course. Shortcuts are not permitted. If you get lost, please return to the last sighted marking.
  • If first aid assistance is needed on the course, call the phone numbers listed at the back of the provide course map from the race kit. Transportation will be arranged to retrieve you.
  • Outside assistance from friends & family members is only permitted at the check points. No support is allowed on the course at any time. This can lead to disqualification of the runner.
  • For 100km runners, there will be a gear check at checkpoint 5 to ensure runner is still carrying sufficient hydration. Runner without the necessary hydration will be disqualified.
  • Mandatory gear must be carried at all times during the race. 50km and 100km runners will be check randomly throughout the race. Failure to comply can lead to a time penalty or disqualification based on the severity of the breach.
  • Please ensure the timing chip is attached to the ankle and checked at every checkpoint to record your time; by running pass all the chip-timing system mats. Otherwise problems will occur with your time result, which may lead to disqualification.
  • Bib number must be visible at the front at all times. (BIB wearing instruction)
  • Running with a bib number that does not belong to you or running the distance you did not registered will lead to disqualification.
  • If you choose to withdraw from the race, inform the nearest staff in the area and remove your timing chip immediately. Transportation will be arranged to pick you up and drop off at the race venue. Please ensure your timing chip is return at the race venue.
  • Runner must obey all directions from the course marshals and race organizer.
  • Littering is prohibited.
  • Violation of the rules will incur a time penalty or disqualification. Any such penalty is at the organizer’s discretion and is final.

Protest Procedure

Runner, who wishes to protest against unfair judgment from any referee or protest against other runners, will have to summit a letter of request to the competition committee within 30 minutes after the race is finished, or after withdrawing from the race, and pay a protest fee of THB 1,000. The fee will only be refunded if the request is success. The race director’s decision is final and cannot be appealed. Any participants’ misconduct during the protest procedure may lead to expulsion from future The North Face 100® Thailand races.


Time limits and Cut Offs

Race Type Start Time Time Limit
100 Km 4.30 AM 18½ Hours
50 Km 5.00 AM 9½ Hours
25 Km 6.30 AM 5½ Hours
15 Km 7.10 AM 3½ Hours

Cut off Times

  • 100km
    • Cut off times at each location.
      • CP5 (50km): cut off time at 8.30 hrs (or Time of Day at 13:30)
      • CP1 (58km): cut off time at 10.06 hrs (or Time of Day at 14:36)
      • CP2 (70km): cut off time at 12.30 hrs (or Time of Day at 17:00)
      • CP3 (80km): cut off time at 14.30 hrs (or Time of Day at 19:00)
      • CP4 (89km): cut off time at 15.38 hrs (or Time of Day at 20:08)
      • Finish Line (100km): cut off time at 18.30 hrs (or Time of Day at 23:00)
    • A medical team will check runner’s conditions at CP5 (50km) during 12:00 – 13:30 to confirm whether you can or cannot continue onto the second loop.
  • 50km
    • Cut off times at finish line.
      • Finish Line (50km): cut off time at 09.30 hrs (or Time of Day at 14:30)
  • 25km
    • Cut off times at finish line.
      • Finish Line (25km): cut off time at 05.30 hrs (or Time of Day at 12:00)
  • 15km
    • Cut off times at finish line.
      • Finish Line (15km): cut off time at 03.30 hrs (or Time of Day at 10:40)

Cut off procedure:  It is mandatory for 100km  runners to reach each respective check point before the assigned cut off times. Runners who reach the check points after the cut off times will not be allowed to continue. There will be a race marshal to do the cut offs at each check point. Runner who is cut off has to return the timing chip and bib number immediately and stop running. Runners must obey all directions from the marshals and the race organizer.

Note: Cut off times is subject to change.

Mandatory Gear

Items 100Km 50Km
Hydration Pack / Belt / Bottle with capacity of* 2 L 2 L
Headlamps (with an extra set of batteries)* Yes Yes
Mobile Phone (with full battery)* Yes Yes
Food, Fuel Bars or Energy Gels Yes Yes
Whistle Yes Yes
Course Map (provided at race kit collection) Yes Yes

*Important Notes:

  • Runner must start and finish the race with the necessary hydration and gear listed above.
  • Hydration pack / belt / bottle must be filled to the required level at the start of the race. There will be a gear check before the race starts. Runner without the mandatory hydration and gear will not be allowed to start the race.
  • For safety reason, random checks will occur during the race. Runner who does not complied with the mandatory gear rules will not be allowed to continue until acquiring the missing items.
  • Runner is not allowed to remove the hydration gear during the race. Finishing the race without the hydration gear will be disqualified. Runner must use a proper hydration system such as a hydration bag or hydration belt.
  • The total amount of water can include water bottles or other containers besides a hydration bag or belt. Disposable plastic bottles are not allowed. Runner’s hands must be free from holding on to any bottles or containers while running.
  • Headlamp is required at a minimum of 70 lumens. Due to darkness and rough tracks, each runner must have a headlamp. Any other kind of torches or lighting is not allowed.
  • Mobile phone must be fully charged before the race starts.

Recommended Gear

  • Trail Running Shoes
  • Water proof pouch or bag for mobile phone
  • Cap / Hat / Visor
  • Racing/Trekking Pole
  • Sun Block
  • Body Lotion/ Lubricant (to prevent abrasion)
  • Sports Sun Glasses
  • Extra pair of socks
  • First Aid Kit (sterile dressing, plaster, strapping tape, antiseptic, painkillers, and any relevant personal medications)
  • Power Bank/External Battery
  • GPS Device

Bag Drop Service at Check Points

100km and 50km runners have the opportunity to prepare maximum 5 bags (1 bag per check point) to help support yourself along the race. Runner can pack energy fuels, energy drinks, fresh clothes, personal medications, etc. Each bag will be dropped off at the 5 specified check points on the course.

The only available date and time to check-in the bags is on Friday, 31st January 2020 from 14:00 until 20:00 at the race venue during race kit collection. Bags that are checked-in after 20:00 will not be acceptedIt is impossible to check-in bags on race day.

Note:  It is not mandatory for runner to use the bag drop service. The quantity of the bags depends on each runner, but the maximum is 5 bags (1 bag per check point). It is recommended using waterproof bags, marked with your name, bib number and check point number (number 1 – 5) that you want your bags to be drop off. Please do not put any valuable items in the bags, as we cannot guarantee security.

After race day, runner will be able to pick up the bags from every check point on Sunday, 2nd February 2020 from 10:00 – 16:00 at the Simalin Resort Khaoyai.