Jupiter, FL, United States · Saturday, September 11, 2027

Fixed Distance 50K

Riverbend Park 50 km Ultra

340 days away

50 km Distance

not publishedn/a Climbing

2.5 est Grit · Entry level

Calculated from 50 km alone — the organiser has not published an elevation profile. Read 2.5 as a floor, not a verdict.

26.9342° N, 80.0942° W © OpenFreeMap © OpenMapTiles Data from OpenStreetMap

What the course asks

Field size ~34 Small. Long stretches with nobody in sight.

DUV results for the 2025 edition (50km) — finishers 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 27 m of light

Regional 2001-2020 average for September — NASA POWER, grid elevation 4 m. Not a forecast.

Results history

Year	Race	Finishers	Men's winner	Women's winner
2025	50km	34	John Parker · 04:01:38	Lisa Eidelman · 05:21:55
2024	50km	22	Daniel Hilliard · 05:32:00	Christy Medina · 06:04:00
2021	50km	16	Eric Kalina · 04:21:00	Addie Green · 04:33:00
2019	50km	22	Nathan Gehring · 05:47:01	Joan Bauman · 06:10:45
2018	50km	32	Nich Panice · 04:44:00	Jen Quellhorst · 05:21:00
2017	50km	17	Eduardo Souza · 04:31:00	Bambi Pennycuff · 05:26:00
2016	50km	20	Nathan Gehring · 05:16:00	Malika Zhang · 05:59:00
2015	50km	18	William Corley · 05:11:00	Maria Paredes · 06:16:00

The field grew 55% between 2024 (22) and 2025 (34). 32% of the 2025 field were women.

DUV results for the 2025 edition (50km) — finishers only. Starters are not published, so the field was at least this big and no finish rate can be given.

Course notes

gear With trail terrain, choose a shoe with moderate cushioning for optimal performance.

Gear for this race

Chosen for 50 km of trail.

Trail Running Shoes 50 km of trail — cushioning that is still there in the last quarter.
Race Nutrition 50 km of self-supported fuelling between aid stations.
Hydration Vests Flask capacity for 50 km, without the bounce.
GPS Watches Battery life first — a 50 km day outlasts most full-GPS modes.

Adidas

Terrex Speed Ultra

RunRepeat found the Adidas Terrex Speed Ultra to have a grippy outsole and great lockdown, while iRunFar noted that the shoe works on a variety of trail conditi…

★★★★★ 4.5

New Balance