Oregon · 100 Miler
Mountain Lakes 100
Mountain Lakes 100 is a 100 Miler event held in Olallie Lake, Oregon. Its next confirmed date is Saturday, September 18, 2027. About 150 runners take part across all distances.
- Race day
- September 18, 2027
- Location
- Olallie Lake, OR
- Field size
- ~150 runners
Race details
- Date
- Saturday, September 18, 2027
- Location
- Olallie Lake, Oregon
- Distances
- 100 Miler
- Field size
- About 150 runners
- Course
- 11700 ft gain
- Registration
- gobeyondracing.com
Registration, course & weather
- Registration status
- Registration status as last checked October 19, 2026: opens soon
- Start time
- 8:00 AM PDT
- Course profile
- Loop course; Trail surface; 11700 ft gain, 11700 ft loss (estimated from third-party elevation data)
About the Mountain Lakes 100
Mountain Lakes 100 in Olallie Lake, OR.
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Mountain Lakes 100: common questions
- When is the Mountain Lakes 100?
- The next confirmed date is Saturday, September 18, 2027.
- Where is the Mountain Lakes 100 held?
- In Olallie Lake, Oregon.
- What distances does the Mountain Lakes 100 offer?
- 100 Miler.
- How many people run the Mountain Lakes 100?
- About 150 runners across all of its distances. That figure is an estimate of the field size, not an entry cap.
- How do I register for the Mountain Lakes 100?
- Registration is handled by the organiser at gobeyondracing.com. Entry fees, caps and deadlines are set there.
- Is registration open for the Mountain Lakes 100?
- Registration status as last checked October 19, 2026: opens soon.
- What time does the Mountain Lakes 100 start?
- 8:00 AM PDT.
- What is the course like at the Mountain Lakes 100?
- Loop course; Trail surface; 11700 ft gain, 11700 ft loss (estimated from third-party elevation data).
Plan this race in RaceRove
Save it to your plan, compare it with other races, check typical race-day weather and track your 50-state progress in the interactive app.