Date
Sat, 5 Jun 2027
Start
09:30
Venue
Clackamas Lake Historic Ranger Station, Government Camp, Oregon
Government Camp, Clackamas County
Countdown
June
The half marathon on one off-road loop, with a gentle 250 m of climbing. A friendly way into trail running, and the busiest race of the weekend.
Key facts
01Open to ages 15 to 99
026.5-hour cut-off
Create a free training plan for the Timberline Marathon: Half Marathon - Saturday
7-day free trial, no card required
The course
The route
Government Camp
Distance23km
Total climb250m
StartElevation
0 kmDrag map to rotate22.5 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
Results
Course verified. Results not yet available.
Organiser
Training
Training for the Timberline Marathon: Half Marathon - Saturday
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: Half Marathon - Saturday plan targets
Typical sessions
23 km with 250 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: Half Marathon - Saturday plan.
7-day free trial, no card required.
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