Mammoth Endurance Half Triathlon
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Event details
The Mammoth Endurance Half Triathlon is scheduled for February 21, 2026, at Lake Louisa State Park in Clermont, Florida. The race is a half-distance triathlon (70.3). Registration closes on February 19 at 11:59 PM ET. The event is part of the Mammoth Endurance Triathlon series and is described as an ultra-endurance format within that series.
Course and support
The course uses short, repeatable loops entirely within Lake Louisa State Park. Organizers keep a lower participant capacity and report a high lifeguard-to-participant ratio and smaller course loops to increase safety and support. An on-course Aid Station and Athlete Village provides access to a participant’s personal crew every loop, on-site medical staff, and real food. The event also offers pre- and post-race education resources such as nutrition and hydration guidance, training plans, sponsor discounts, giveaways, and community calls. Visit the organization's website for the most recent information.
