Date
Fri, 6 Aug 2027
Venue
Granite Beach, Folsom Lake State Recreation Area, Granite Bay, California
Roseville, Placer County
Countdown
August
A full lap of Folsom Lake on foot, with a 10-mile out-and-back thrown in. You get 34 hours to finish, so it's a proper 100 miler with room to breathe.
Key facts
0134-hour cutoff for the full 100 miles
02Carry a light from 30 minutes before sunset to 30 minutes after sunrise
03Reflective vest required on road sections
Create a free training plan for the Folsom 100 161 km
7-day free trial, no card required
The course
The route
Roseville
Distance161km
StartElevation
0 kmDrag map to rotate135.2 km
Weather
Early-August, Roseville
36°CTypical high
17°CTypical low
11°CColdest in 20 years
0%Days with rain
Highs around 36°C and lows around 17°C, but it has dropped to 11°C. Rain on 0% of days.
NASA POWER data, 2006-2025, the week either side of race day
2025 results
Who finishes, and how
#RiderTimeAvg speed
01Kevin Radtke25:33:006.3 km/h
02Thomas Bell27:58:155.8 km/h
03Rebekah Myers28:12:505.7 km/h
15
Finishers
1d 7:29:11
Median time
5.1 km/h
Median speed
Overall · 2025 results, as published by the organiser.
How fast could you finish?
Get a prediction based on your recent training
Organiser
OrganiserSummit 2 Summit Mountain Racing (SS Mountain Racing)
Websitessmountainracing.com
Instagram@ss_mountain_racing
Running since2022
Training
Training for the Folsom 100 161 km
We don't do generic plans. We combine deep knowledge of this race's demands with your recent training, then build a plan with you that progresses as you do.
Beina integrates directly with your existing tools to understand your current fitness, and synchronise your planned sessions.
Intervals.icuWhat a Folsom 100 161 km plan targets
Typical sessions
161 km
Time on feet and fatigue resistance
Fuelling and pacing for the whole event
What your weeks look like
Typical sessions
Long runs that build time on your feet
Tempo and threshold sessions to hold race pace
Back-to-back weekend runs for fatigue resistance
Not a generic schedule
Typical sessions
Built from your current fitness and the time you actually have
Adapts every week as Beina learns how you respond
Syncs your sessions straight to Garmin and Wahoo
One clear next session, never a wall of spreadsheet
Entries open now
Get your Folsom 100 161 km plan.
7-day free trial, no card required.
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