Seattle, WA, United States · Saturday, May 23, 2026
Sri Chinmoy 13 Hour Race
We hold no course length for this race — a timed or backyard event is measured by the clock, not the kilometre — so there is no Grit score to give you.
What the course asks
DUV results for the 2026 edition (13h) — ranked runners only. Starters are not published, so the field was at least this big and no finish rate can be given.
Typical conditions, May
Regional 2001-2020 average for May — NASA POWER, grid elevation 110 m. Not a forecast.
The Aid Station
Course-specific beta from the community
With road terrain, choose a shoe with moderate cushioning for optimal performance.
Gear for this race
Chosen for this road race with 25 m of ascent.
- Trail Running ShoesCushioning on road that is still there in the last quarter.
- Race NutritionSelf-supported fuelling between aid stations.
- Hydration VestsFlask capacity without the bounce.
- HeadlampsA 13 h limit puts you out there after dark.
- GPS WatchesBattery life first — an ultra outlasts most full-GPS modes.
Course Notes
Scenic 1.52 mile mixed-surface course in Magnuson Park along the shores of Lake Washington and inland wetlands. Enthusiastic aid and support. Great event for those going beyond the marathon
Similar races
Other road ultras of the same format.