Susitna 100 Race Rules

100 Mile Race

All racers must attend a mandatory gear check meeting.

Day of Race Sign In

start featheredEach racer must see the Race Officials at the Race HQ and "officially" sign-in between 7:30 & 8:45AM.  

  • Each racer must, at sign in, declare their division (mode of transportation).
  • Any racer who has not signed in by 8:45am must wait until after the race start to sign in.
  • Any racer with gear needing to be re-checked, must also wait until after the start.
  • If you neglect to sign in, you are not entered in the race.
  • Race starts at 9:00AM


All racers must be 18 years old by the day of the race unless approved by the Board of Directors.


Any racer with a dog on the course will be disqualified. Please do not bring your pets to the race! The race start/finish is at Happy Trails Kennels – this is a working Iditarod dog team kennel. We are guests of this business and must be considerate!

Phone Calls

We know you have friends and family who want to track your progress during the race. Please ask them to do so via the website, which will be updated with results throughout the race if weather and conditions allow. During the race, our phones are used to contact checkpoints and facilitate racer safety. If a true emergency arises, and someone must contact a racer or race personnel, then this number may be used 907-795-1161. In the history of the race, only four or five such situations have arisen. Events such as death in the family or imminent birth of a child come to mind. Arranging post-race transportation is NOT an emergency.

Please do not call any of the checkpoints including Happy Trails Kennel.

Required Gear

  • bikers lunch featheredSleeping bag rated to -20F (see details below)
  • Sleeping pad-minimum size = 20" x 48"
  • Bivy sack or tent (SOL Escape or Escape lite meet the requirement/NO space blankets)
  • Headlamp or flashlight
  • Rear flashing light to be used after sunset
  • Two-quart (64 oz) insulated water container
  • 1-day of food (3000 calories) may be consumed after the last checkpoint

Litter/Used or Wet Gear

  • Racers will be disqualified for littering.
  • Racers are not allowed to leave wet or discarded clothing or gear at any checkpoint.

If you start with it, you finish with it (no drop bags).

No Outside Help

  • Racers may only accept help from officials or other racers.
  • Racers are not allowed to accept any help from a race official that advances that racer along the course.


  • 100 mile racers must sign into and verbally check out of each checkpoint.
  • Any racer who misses a checkpoint will be disqualified.
  • Non-racers who are on the course to follow racers (or for any other reason) are not permitted in checkpoints.

Race Route

  • Racers must follow the marked race route (no short cuts).

Time Limits

All 100 mile racers must adhere to the cut-off times for checkpoints as presented at the Pre-Race Briefing. Total time allowed for the 100 mile course is 48 hours.

 Susitna 100 Checkpoints and Cutoff Times

Checkpoint Milepost To Finish Next checkpoint Departure time/day
Happy Trail Kennel Race HQ/Start 0 100 22 0900 Sat
Pt. Mackenzie Parking Lot 22 78 12 1600 Sat
Flathorn Lake 34 66 18 2100 Sat
5 Star Tent Camp 49 51 14 N/A

Eaglequest Lodge

63 37 17 1300 Sun
Cow Lake 80 20 10 2200 Sun
Hunter Loop 90 10 10 0400 Mon
Happy Trail Kennel Race HQ/Finish 100 0 0 0900 Mon


  • · If you are taken from the course by a race official via snowmachine, plane or other transport, you will be charged an evacuation fee of $200.00.  Be prepared to pay this fee upon arrival at the Headquarters.   Self-evacuation from Pt. Mackenzie or Eagle Quest Lodge via the road system by your own means will not be charged the evacuation fee but you MUST notify a race official.