REGISTER FOR THE SUSITNA 100

February 13-15, 2027

REGISTER FOR Susitna 100
REGISTER FOR Susitna 100 
ENTRY FEES

$270 before December 31st
$380 after December 31st
No waitlist. Field limit: 150 racers.

RACE T-SHIRTS

Register before January 1 to guarantee your shirt size. All racers get a shirt and all finishers get and award.

A NOTE ON DIFFICULTY

WE make no claims about how the Susitna 100 stacks up against any other event. Plenty of races are happy to call themselves the toughest. We'll just say this: don't underestimate what it takes to travel 100 miles through a remote Alaska winter.

DECLARING YOUR DIVISION

You can change your division (bike, run, ski) at the starting line on race day! Declare at sign-in.

  • For your safety, these policies apply to both the Susitna 100 and Little Su 50K, unless otherwise stated:

    1. The maximum allowable time for completion of the Susitna 100 is 48 hours. The maximum allowable time for completion of the Little Su 50K is 12 hours. 

    2. Registration is limited to 150 participants in the Susitna 100 and 125 in the Little Su 50K.

    3. If a racer is evacuated from either the Susitna 100 or the Little Su 50K they will be charged $200/$100 evacuation fee. Evacuation will be by snowmobile or airplane depending on weather, daylight, and equipment availability.

    4. For your safety, racers will need to provide the name and phone number of a person to contact in case of emergency during race weekend.This person will be designated by you to authorize a search for you by Civil Authorities if you fail to show up and check out with the Finish Line Race Official , whether you are an official finisher or not. You will be responsible for the expenses of any such search.

    5. Racers will be disqualified if, during the race, they travel on any plowed roads except or they do not follow the marked race course.

    6. The entry fee for the Susitna 100 or Little Su 50K is for the current race only. It is not refundable or transferable to any other party, nor is it transferable to any other race, or any subsequent race year.

    7. Racers must be at least 18 years of age by race day unless prior approval by the Race Board. The Race Board reserves the right to refuse race entry.

    To be assured of the size shirt you request, please register before January 1st. All racers will receive a shirt and all finishers will receive an award.

    Entry fees are not refundable or transferable