Green Lakes Endurance Runs 50K
Four eight-mile loops make Green Lakes a runnable trail 50K, mixing shaded lakeshore paths, short forest climbs, and exposed summer meadows.
Quick facts
- Four laps of the park's nearly eight-mile circuit form the 50K.
- Singletrack, grass, dirt road, and asphalt all appear each lap.
- Two staffed aid stations and an extra water stop support the loop.
- The fixed-distance cutoff is 9 p.m., 14 hours after the start.
About the Green Lakes Endurance Runs 50K
The four-lap 50K gives runners repeated access to the same aid and drop-bag area without turning the route into a flat track. It is a practical first looped ultra with enough climbing and exposure to demand restraint.
Course
The circuit moves between well-maintained trail, grassy stretches, dirt road, and short paved pieces. Two ascents interrupt each lap before a longer descent returns runners toward the lower lakes.
Race-day weather
A morning start does not avoid the main August challenge: heat and humidity can build through the later laps. The long open meadow feels much warmer than the shaded forest and lakeshore.
Past Green Lakes Endurance Runs 50K dates and results
| Year | Date | Status | Results |
|---|---|---|---|
| 2026 | Saturday, August 22, 2026 | Results available | Open results |
| 2025 | Saturday, August 23, 2025 | Results available | Open results |
| 2024 | Saturday, August 24, 2024 | Results available | Open results |
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Green Lakes Endurance Runs 50K FAQ
When is the Green Lakes Endurance Runs 50K?
We're waiting for the finalized date for the 2027 Green Lakes Endurance Runs 50K. The most recent running was on Saturday, August 22, 2026.
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