Mountain Lakes 100

Results: 2026

91 runners finished.

Go Beyond Racing's results page links to this UltraSignup listing, which does not publish a starter count.

Source: UltraSignup — 2026 Mountain Lakes 100 results. Checked September 24, 2026.

Next edition: September 18, 2027. The organizer lists September 18–19, 2027, with registration opening December 6, 2026 at $375 through December 18.

Event Overview

A remote 100-mile Cascade trail race based at Olallie Lake, with rocky mountain terrain, Pacific Crest Trail miles, 11,700 ft of gain, and a 30-hour cutoff.

Course & Terrain

Mountain loop through the Olallie Lake area and nearby Pacific Crest Trail terrain between Mount Jefferson and Mount Hood.

Key course features to know before comparing this race:

• Olallie Lake Resort race base
• Rocky Cascade and Pacific Crest Trail sections
• Warm Springs River crossing on the PCT
• Little Crater Lake and the Frog Lake turnaround, with Mount Hood views in daylight
• Timothy Lake shoreline trail and dam crossing

The course combines runnable forest trail with rocky mountain footing and enough cumulative climbing to make late-race pace variable. It is 96 miles of singletrack and 5 miles of jeep and gravel road, all between 3,300 ft and 5,700 ft. The opening 12-mile loop circles Olallie Lake clockwise, follows Road 4220 past Breitenbush Lake and returns on the PCT through the 2020 burn, where shade is scarce; this direction was new in 2026. The PCT then drops to the Warm Springs River crossing, about two miles past the Warm Springs aid station, followed by a 900-ft climb, and descends nearly 1,000 ft to the Clackamas Ranger Station. From there the route passes Timothy Lake and Little Crater Lake to the Frog Lake turnaround, a stretch with more than 1,200 ft of climbing. The return circles Timothy Lake on some of the best trail of the day, with rocky patches, then retraces the PCT; the last 3.6 miles from Olallie Meadows are mostly uphill. Horses use these multi-use trails.

The organizer describes September here as usually stable, with cool, clear days and nights that can drop into the 30s°F, but warns that mountain weather can turn. The inaugural 2013 race shows how badly: the remnants of a typhoon forced organizers to stop it after about 15 hours. The fire-scarred opening miles offer little shade on a warm morning. With no cell service on course, check the Olallie Lake and Timothy Lake forecasts before leaving town.

Format & Support (as run)

Why This Race Matters

Todd and Renee Janssen formed Go Beyond Racing in 2013 and launched Mountain Lakes that September, and the first edition is remembered as the race no one finished: after about 15 hours, the remnants of a typhoon knocked out emergency communications and the race was stopped. The organizer bills it as Oregon’s prettiest 100-miler, run largely on the Pacific Crest Trail between Mount Jefferson and Mount Hood. The 2020 race was canceled because of COVID-19, and the 2020 Lionshead Fire kept the 2021 and 2022 editions away from Olallie Lake until the start and finish returned in 2023. The 2026 race was the 13th, and Jessica Quinn’s 18:38:56 made her the first woman to win outright.

Historical benchmark notes in the directory record (verify current records with the linked official sources):

• Men: Sidney Noble, 16:04:09, 2025
• Women: Janessa Taylor, 16:24:11, 2014 (original course; second overall)
• Women, since the 2023 return to Olallie Lake: Jessica Quinn, 18:38:56, 2026

Preparing for a Race Like Mountain Lakes 100

The 100-mile race guide covers the format as a whole. These guides go deeper:

• Walking strategy for ultramarathons: When and how to walk by terrain, effort and cutoffs.
• Crew and aid-station strategy: Crew tables, aid stops, drop bags and runner preferences.
• Gut training for ultrarunners: A six-week practice sequence for race-day fueling.
• Tapering for ultramarathons: Plan the taper and race week around your own recovery.

Best Fit

• Runners who want a scenic Pacific Northwest 100 with moderate climbing (11,700 ft) and a Western States qualifying finish
• Runners who like an unplugged, old-school race: no cell service, paper tracking and a lakeside finish
• Trail stewards: 8 hours of trail work is part of the entry

Planning Notes

• Treat intermediate cutoff gates as part of the course. Build enough margin for aid stops and late-race slowdown, and verify every current gate in the official rules.
• Train for terrain-specific fatigue. Technical trails and mountain courses demand downhill durability, hiking efficiency, and reliable night lighting.
• The directory does not mark this as having simpler logistics. Confirm qualification, terrain, support, registration, medical, and withdrawal requirements before planning around it.

Event FAQs

Related Preparation

• Compare verified US 100-mile races
• Compare this race in the full 2026 calendar
• Open the 100-Mile format guide
• Open the Fixed-Distance format guide
• Compare all race formats
• Use the timed-race pace calculator
• Plan checkpoint arrivals and cutoff buffers
• Print a pace band for your goal time
• Estimate race calories and plan fueling
• Build a crew and drop-bag plan
• Build a race-specific gear checklist