Date
Sat, 7 Nov 2026
Start
05:00
Venue
Beals Point Recreation Area, Granite Bay, California
Roseville, Placer County
Countdown
November
A full 100 miles on trail that loops and doubles back to finish where you started at Beal's Point. Only 4,100 m of climbing, so the challenge is the distance and the clock.
Key facts
01Official finishers must finish under 30 hours
02Course ends back at Beal's Point after loops and out-and-back sections
03Starts at 05:00, so expect to run through a full night
Create a free training plan for the Rio Del Lago 100 Mile Endurance Run 161 km
7-day free trial, no card required
The course
The route
Roseville
Distance161km
Total climb4,102m
StartElevation
0 kmDrag map to rotate136.0 km
Weather
Early-November, Roseville
20°CTypical high
9°CTypical low
1°CColdest in 20 years
23%Days with rain
Highs around 20°C and lows around 9°C, but it has dropped to 1°C. Rain on 23% of days.
NASA POWER data, 2006-2025, the week either side of race day
Results
Course verified. Results not yet available.
Organiser
Training
Training for the Rio Del Lago 100 Mile Endurance Run 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 Rio Del Lago 100 Mile Endurance Run 161 km plan targets
Typical sessions
161 km with 4,102 m of climbing
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
Hill reps and vert to prepare the climbs and descents
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 Rio Del Lago 100 Mile Endurance Run 161 km plan.
7-day free trial, no card required.
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