DateExpected
Early May 2027
Based on past editions. We'll confirm when the organiser announces.
Venue
Big Twin Lake Resort & Campground, Winthrop, Washington
Winthrop, Okanogan County
Countdown
May
The friendly way in: a 25K with a modest 700 m of climbing, and the busiest start of the three distances. Expect a figure-eight and a climb to the second aid station.
Key facts
01Part out-and-back, part figure-eight course
02Includes a climb to the second aid station
Create a free training plan for the Sun Mountain 50M/50K/25K 25 km
7-day free trial, no card required
The course
The route
Winthrop
Distance25km
Total climb701m
StartElevation
0 kmDrag map to rotate24.5 km
Weather
Early-May, Winthrop
11°CTypical high
-1°CTypical low
-6°CColdest in 20 years
24%Days with rain
Highs around 11°C and lows around -1°C, but it has dropped to -6°C. Rain on 24% 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
01Caitlin Gregg1:57:35.012.8 km/h
02Ava Stone2:01:05.012.4 km/h
03Anna Deweirdt2:02:19.312.3 km/h
139
Women finishers
2:49:02
Median time
8.9 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 Sun Mountain 50M/50K/25K 25 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 Sun Mountain 50M/50K/25K 25 km plan targets
Typical sessions
25 km with 701 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
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
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Get your Sun Mountain 50M/50K/25K 25 km plan.
7-day free trial, no card required.
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