Riverbend Ultras 12 Hour/50K/Fun Run invites runners of all levels to experience the serene beauty and tranquility of Riverbend Park, located along Picnic Island. This special edition commemorates those lost on September 11, 2011, with participants encouraged to wear patriotic colors as a tribute. The event offers three distinct options: a challenging 50K race, an endurance-focused 12-hour run, and a family-friendly fun run. The route for the 50K features two loops around Picnic Island followed by nine laps of the scenic Riverbend Loop along the Loxahatchee River, totaling approximately 31 miles. For those taking on the grueling 12-hour challenge, runners will start with multiple laps of the 3.2-mile loop until after 6 PM when they transition to Picnic Island for the remainder of their time. Both the 50K and 12-Hour races offer medals upon completion as well as trophies for top male and female finishers. Participants in both endurance events will need to bring their own food, water, and fuel, with no aid stations available along the course. Runners are welcome to set up camp near a large tiki hut or use personal tents within designated areas provided by organizers. The event is organized as a non-profit endeavor, aiming to raise funds for wounded veterans relief through donations collected from registration fees exceeding basic operational costs. All proceeds contribute directly towards supporting these brave individuals who have served their country with distinction. Registration includes shirts and medals for the 50K and 12-Hour runners, while fun run participants receive a medal upon completion at no additional cost beyond a nominal fee covering administrative expenses. No refunds are offered; however, registrations can be deferred to the following year if necessary, ensuring continued support for veterans regardless. Join us on September 11, 2027, as we come together in memory of those who have been lost and celebrate our shared love for nature and community through this unique running experience.
Races Offered
12-Hour
Sep 11, 2027
straighten
Distance —
12-Hour
terrain
Type —
Running
timer
07:00
sell
$55.00
50K
Sep 11, 2027
straighten
Distance —
50K
terrain
Type —
Running
timer
07:15
sell
$45.00
Fun Run
Sep 11, 2027
straighten
Distance —
1K
terrain
Type —
Running
timer
07:30
sell
$15.00
Weather History
These values represent the 3-year monthly averages for September in Jupiter.
thermostatTemperature
23.3° / 31.1°
wb_sunnyFeels like
27.0° / 35.1°
light_mode
Avg sunshine hours
9h 41m
water_drop
Avg rainfall
9.4 mm
ac_unit
Avg snowfall
—
air
Avg wind speed
7.4 km/h (Light breeze)
opacity
Sweat loss rate
Very high
terrain
Course conditions
Hard and dry surface
sunny
Max UV Index
High (6.0)
humidity_mid
Humidity
84.1%
wb_twilight
Sunrise
07:06
nightlight
Sunset
19:23
About Jupiter
Learn more about the host city, Jupiter.
Jupiter is the northernmost town in Palm Beach County, Florida, United States. Located along the Atlantic coast of South Florida at the mouth of the Loxahatchee River, the town is bordered by the Atlantic Ocean to the east, Martin County and the village of Tequesta to the north, unincorporated Palm Beach County to the west, and Juno Beach to the south. The town is connected to the Intracoastal Waterway through the Indian River Lagoon, which reaches its southern terminus at the Jupiter Inlet. Approximately 84 miles north of Miami and 15 miles north of West Palm Beach, Jupiter, together with the adjacent village of Tequesta, forms the northernmost municipality in the Miami metropolitan area.