Ultra Running Hub Jupiter, FL, United States · Saturday, September 12, 2026
Timed 12 hours
Riverbend Park 12 Hour Ultra
Race completed
not publishedn/a Distance
not publishedn/a Climbing
not publishedn/a Grit
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
Field size ~34 Small. Long stretches with nobody in sight.
DUV results for the 2025 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, September
Daytime high 29°C
Night low 26°C
Rainfall Wet — expect rain
Daylight 12 h 26 m of light
Regional 2001-2020 average for September — NASA POWER, grid elevation 4 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
Scenic flat and fast trail. Hard pack 6 ft wide shell rock path. 3.67 mile loop.
Similar races
Other trail ultras of the same format.