Bigfoot 20M 2027
Also known as: Bigfoot 20 Mile
A 21.1-mile (34 km) course from Marble Mountain Sno-Park on the southwest side of Mount St. Helens, on a loop via Blue Lake. It is 100% singletrack through lava fields, stream crossings and old-growth forest around the volcano that erupted in 1980, with about 1,270 m of climbing. With no road crossings there is a single aid station, Blue Lake at mile 12.2, and it starts on the same day and at the same place as the Bigfoot 200.
The course tops out at 1,479 m (low point 745 m). The main climb comes right from the start: 662 m around 0–11 km. About 40% of the distance is gentle (under 5% grade). The median finish was about 6 h.
Estimate your finish from your ITRA index
Estimate (no finisher data for this race)
Enter your ITRA performance index to get an estimated finish time, aid-station splits and cutoff margins. This race has no finisher ITRA data, so it uses the transfer model: your predictions for the 287 races that do have finisher data, scaled by distance and elevation gain (km-effort) — the same calculation as the TRAIL STATUS app. Nothing is saved or sent.
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Predict in detail from my Strava trainingOverview
- Date
- Fri, 13 Aug 2027
- Start
- 09:30
- Location
- USA
- Distance
- 34 km
- Elevation gain
- 1,273 m
- Time limit
- 9h
- ITRA
- H
- Official website
- www.destinationtrailrun.com/bigfoot-20m
Elevation profile
Aid stations and cutoffs
| # | Distance | Aid station | Segment | Cutoff |
|---|---|---|---|---|
| 1 | 19.6 km | Aid 1ブルー・レイク Blue Lake | 19.6 km | 15:306h |
| F | 34 km | FinishFINISH マーブル・マウンテン・スノーパーク | 14.4 km | 18:309h |
The small figure under each cutoff is the time from the start.
2026 results
108 finishers. Finish times of those who finished:
- Fastest
- 2h 56m
- Top 10%
- 4h 7m
- Top 25%
- 4h 42m
- Median
- 5h 40m
- Top 75%
- 6h 53m
- Top 90%
- 7h 58m
- Last finisher
- 9h
"Top 25%" means one in four finishers had crossed the line by this time.
Years with a different course or different cutoffs are not directly comparable.
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From your training log, TRAIL STATUS estimates your finish time, aid-station splits and cutoff margins for this race.
Predict my raceCompiled from each race's official information. Details can change, so always check the race's official website for the latest. Spotted a mistake? Please tell us through the contact form.
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