Rules
100 Mile Challenge 2026
The challenge
Log 100 challenge miles between Thursday, November 26 and Friday, December 25 (Central time).
- Log each activity with the date you did it. Dates must fall inside the challenge and can't be in the future.
- Use the same name every time so your miles add up.
- Everyone who reaches 100 challenge miles is a finisher.
How miles count
Some activities are easier per mile than others, so they convert to challenge miles at different rates. The ratio is raw distance to challenge miles.
| Activity | Ratio | Example |
|---|---|---|
| Running | 1:1 | 10 miles = 10 |
| Paddling | 1:1 | 10 miles = 10 |
| Walking/Hiking | 1:1 | 10 miles = 10 |
| Road Biking | 3:1 | 30 miles = 10 |
| Mountain Biking | 2:1 | 20 miles = 10 |
| Cross Country Ski | 1:1 | 10 miles = 10 |
| Swimming | 0.25:1 | 1 mile = 4 |
| Other | 1 hour = 3 miles | 60 minutes = 3 |
Divisions
Standings are also shown by gender and age group. Your age and gender are never shown publicly, only your division.
Age groups: Under 18, 18–29, 30–39, 40–49, 50–59, 60–69, 70+
Gender: Female, Male, Non-binary
If you leave age or gender blank, you'll appear as “Unspecified” in that division. You always count in the overall standings.
Your privacy
Only your name, team, division and miles appear on the leaderboard. Your age and mailing address are only seen by the organizers, who use addresses to mail patches.