Event Description The 36 th Annual Fitness Challenge Reverse Sprint Triathlon and Reverse Sprint Duathlon Run 5k, Bike 15k, Swim 1/4 Mile Run 5k, Bike 15k, Run 1 Mile Family Friendly, Great First Time Triathlon and Duathlon Event Location & Accomodations Trending Events RunThrough USA Long Beach 5k,10k & Half Marathon Race 2026 J-Hawk Earlybird Race Series: Duathlon, Triathlon (Olympic, Sprint, & SuperSprint), AquaBike (Oly & Sprint) Bubble Run | Nashville