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Mountain Lakes 100
Olallie Lake, Oregon · Saturday, September 19, 2026 · 100 Mile
Official race page & registration ↗Mountain Lakes 100 takes place on Saturday, September 19, 2026 in Olallie Lake, Oregon. The race is run over 100 Mile. It is run on trail. For anyone travelling in, Redmond is about 48 miles away and Salem is about 61 miles away.
It is one of 56 races on the Oregon calendar that September. The 100 Mile is rare in Oregon: only two races on the calendar offer it.
- Date
- Saturday, September 19, 2026
- Location
- Olallie Lake, Oregon
- Distances
- 100 Mile
- Surface
- Trail
Listing from the 2026 race calendar, refreshed nightly. Details can change: confirm date and entry on the official race page before travelling. Spot an error? Tell us here.
Making a race weekend of it?
Stay near the start line in Olallie Lake: check in Sep 18, out Sep 20.
Common questions
When is Mountain Lakes 100?
Mountain Lakes 100 is scheduled for Saturday, September 19, 2026.
Where is Mountain Lakes 100 held?
Mountain Lakes 100 is held in Olallie Lake, Oregon. It is about 48 miles from Redmond and 61 miles from Salem.
What distances does Mountain Lakes 100 offer?
The listed distances are 100 Mile.
How do I register for Mountain Lakes 100?
Registration is handled on the official race page, linked at the top of this listing. Entry can close early if the race sells out.
More races nearby
- Sep 192026 Beaverton Half Marathon, 5/10K Presented by NIKEBeaverton, OR
- Sep 192026 MLK Dream RunPortland, OR
- Sep 192026 Northwest Series - Day 1 (OR)TBD, OR
- Sep 19Crystal Creek RunEddyville, OR
- Sep 19Prefontaine Memorial RunCoos Bay, OR
See every race on the Oregon calendar, Oregon Ultras, or use the Race Finder for maps and filters.