Riverbend Ultras 12 HR/50K

The Riverbend Ultras 12 HR/50K/Fun Run returns to Jupiter, Florida on September 12th, offering runners a unique blend of community-focused events and scenic trail running along the tranquil Loxahatchee River. Participants will gather at the River Pavilion in Picnic Island within beautiful Riverbend Park for this annual gathering that celebrates both endurance and camaraderie among nature enthusiasts.
Race morning arrives with temperatures expected to be warm, typical for September in Florida, though the event's setting amidst lush greenery offers respite from direct sunlight. UV index levels are forecasted at 6.0 (High), so participants should prepare accordingly by wearing sunscreen and protective clothing to avoid sunburn and heat-related illnesses.
Established as a non-profit endeavor since its inception, this race has become an integral part of Jupiter's community calendar, drawing runners each year for the love of nature and fitness. The event raises funds directly supporting the local Florida Trail Association chapter through participant fees beyond basic overhead costs. Over 200 participants typically register annually across all three events—12-Hour Ultra, 50K, and Fun Run—with enthusiasm growing as more discover its charm.
The course winds along a firm yet slightly soft trail surface within Riverbend Park, featuring the Lake to Ocean Trail among other scenic routes. Participants can expect to run multiple laps of approximately 3.2 miles each for the endurance events, while the shorter loops provide ample opportunities to enjoy the park's natural beauty up close. Notably, after 6 PM on race day, runners will transition onto the Picnic Island Loop until they complete their respective distances.
Weather conditions during September in Jupiter are expected to be warm with firm and slightly soft trail surfaces underfoot for this year’s event. Temperatures range between around 75°F (24°C) at dawn and can climb into the mid-80s by afternoon, while humidity levels remain moderate but noticeable throughout the day.

The Riverbend Ultras 12 HR/50K/Fun Run offers three distinct experiences: a 12-Hour Ultra where runners complete as many loops of approximately 3.2 miles each within the allotted timeframe; a grueling yet rewarding 50-K distance that covers roughly 31.2 total miles over multiple laps including both Picnic Island and Riverbend Loops; and a Fun Run for those looking to enjoy shorter distances without formal time tracking or competition pressures.
In this event, registration is available at https://ultrasignup.com/register.aspx?did=135494 with fees of $45.00 for the 12-Hour Ultra, $35.00 for the 50K distance, and a nominal fee of $15.00 covering both donation and medal costs for Fun Run participants who may opt to add t-shirts at checkout. All registrations must be completed by August 31st to secure your spot.
Participants in all three events will collect their bibs during the designated Bib Pickup period held from September 7th through October 5th, with specific details provided upon registration confirmation. For those attending on race day itself, bib pickup occurs at the event start location located at 9060 Indiantown Road starting one hour prior to the first wave departure.
The Riverbend Ultras 12 HR/50K/Fun Run is set for September 12th in Jupiter, Florida. This community-driven race offers runners not just a physical challenge but also an opportunity to contribute directly to local conservation efforts through participation fees supporting the Florida Trail Association chapter.