Ultra Running Hub Grand Rapids, MI, United States · Saturday, June 20, 2026
Wicked Worm 12 Hour
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 (12h) — ranked runners only. Starters are not published, so the field was at least this big and no finish rate can be given.
Typical conditions, June
Regional 2001-2020 average for June — NASA POWER, grid elevation 234 m. Not a forecast.
The Aid Station
Course-specific beta from the community
With trail terrain, choose a shoe with moderate cushioning for optimal performance.
Gear for this race
Chosen for this trail race.
- Trail Running ShoesCushioning on trail that is still there in the last quarter.
- Race NutritionSelf-supported fuelling between aid stations.
- Hydration VestsFlask capacity without the bounce.
- HeadlampsA 12 h limit puts you out there after dark.
- GPS WatchesBattery life first — an ultra outlasts most full-GPS modes.
Course Notes
The Wicked Worm Trail Races are run on the beautiful trails at the Robinette’s Apple Haus. Known for being one of the most technical trails in West Michigan. Distance per loop is 4.15 miles.
Similar races
Other trail ultras of the same format.