DateExpected
Late May 2027
Based on past editions. We'll confirm when the organiser announces.
Venue
White Pines Park, 1965 Blagen Rd, Arnold, California
Arnold, Calaveras County
Countdown
May
The long one: 50 km point to point that ends back at White Pines Park. About 1,700 m of climbing makes it a solid day out, not a brutal one.
Key facts
01Shuttle runs from White Pines Park to the Fullen Road start
029-hour limit, course closes at 17:00
03Dogs allowed on leash; start at the back and let others go first
Create a free training plan for the Run the Rim 50 km
7-day free trial, no card required
The course
The route
Arnold
Distance50km
Total climb1,744m
StartElevation
0 kmDrag map to rotate44.1 km
Weather
Late-May, Arnold
24°CTypical high
10°CTypical low
0°CColdest in 20 years
16%Days with rain
Highs around 24°C and lows around 10°C, but it has dropped to 0°C. Rain on 16% of days. Pack for the cold end, not the average.
NASA POWER data, 2006-2025, the week either side of race day
2026 results
Who finishes, and how
#RiderTimeAvg speed
01Estela Vergara07:30:036.7 km/h
02Marie Swain07:34:056.6 km/h
03Dorothy Cullen08:16:236.0 km/h
5
Women finishers
8:16:23
Median time
6.0 km/h
Median speed
Women · 2026 results, as published by the organiser.
How fast could you finish?
Get a prediction based on your recent training
Organiser
Training
Training for the Run the Rim 50 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 Run the Rim 50 km plan targets
Typical sessions
50 km with 1,744 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 Run the Rim 50 km plan.
7-day free trial, no card required.
Other races at Run the Rim
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