Date
Sat, 5 Jun 2027
Start
08:30
Venue
Clackamas Lake Historic Ranger Station, Government Camp, Oregon
Government Camp, Clackamas County
Countdown
June
The full marathon distance on trail, one big loop out of Government Camp. With only 445 m of climbing over 41 km, it's a runnable day, not a mountain grind.
Key facts
01Open to ages 15 to 99
02Course length can shift by about half a mile depending on trail availability
Create a free training plan for the Timberline Marathon 41 km
7-day free trial, no card required
The course
The route
Government Camp
Distance41km
Total climb445m
StartElevation
0 kmDrag map to rotate40.2 km
Weather
Early-June, Government Camp
18°CTypical high
8°CTypical low
2°CColdest in 20 years
37%Days with rain
Highs around 18°C and lows around 8°C, but it has dropped to 2°C. Rain on 37% of days.
NASA POWER data, 2006-2025, the week either side of race day
2025 results
Who finishes, and how
#RiderTimeAvg speed
01Leanna Monteleone03:51:2810.5 km/h
02Sarah Yang03:58:0310.2 km/h
03Bea Maass04:18:069.5 km/h
33
Women finishers
5:28:35
Median time
7.4 km/h
Median speed
Women · 2025 results, as published by the organiser.
How fast could you finish?
Get a prediction based on your recent training
Organiser
Training
Training for the Timberline Marathon 41 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 Timberline Marathon 41 km plan targets
Typical sessions
41 km with 445 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
Entries open now
Get your Timberline Marathon 41 km plan.
7-day free trial, no card required.
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