2026 Race Date
The 36th Annual AC100 is scheduled for October 3, 2026.
2026 Lottery Info
- Lottery opens: September 19, 2025
- Lottery closes: September 29, 2025
- Entrants + Waitlist Published: October 3, 2025
New Sterling Silver Ticket Race
We’re excited to announce That’s No Moon as the newest Sterling Silver Ticket Race for AC100 2026.
The top 2 male and top 2 female finishers in the 50 Miler on September 20, 2025 in Silverado, CA
will earn automatic entry into AC100, bypassing the lottery.
Learn more on the event page.
Mount to Coast Demo Run
Join the Wednesday Night Run Crew for a special Mount to Coast demo run on Wednesday, August 27. It’s a great chance to test out the new trail shoes and connect with fellow runners.
Location & Time: See Run Republic’s Strava page for details.
Exclusive Discount: Use code AC100MTC at mounttocoast.com for 15% off, valid through September 30.
2026 Trail work schedules will be emailed to the runners in the race and are also posted in the Facebook group.
If you’re interested in HAM certification or want to volunteer please visit the Ham Radio page.
2025 AC100 Course Photos. Photos: Paksit Photos.
2025 AC100 1st Place Finisher. Photos: Bernardo Falki