Clearwater Running Festival Marathon
Race Day Weather
Cool start, warming up fast
Runners will face a temperature increase from 52°F at the start to 69°F by the finish, with humidity averaging 64%. Light winds at 8 mph will create a headwind in the first mile and a tailwind from miles 7 to 10, offering a boost during those segments. As temperatures rise, runners should adjust their pace accordingly and consider hydration strategies, especially in the warmer latter stages of the race.
Pace Calculator
Get forecast alerts for Clearwater Running Festival Marathon
We'll text or email you when the forecast shifts — so you can adjust gear, pacing, and strategy. Max one per day.
Get your personalized Clearwater Running Festival Marathon race plan
True Effort pacing, weather-adjusted mile splits, fueling timeline with aid stations, packing checklist, carb tracker, spectator guide — all personalized to your goal and race-day conditions.
Race Info
This Boston Qualifier (BQ) marathon course is a double loop of the half marathon that starts at Sand Key Park and heads through Clearwater Beach, over the Clearwater Memorial Bridge through Old Clearwater. The course continues through the Town of Belleair with mansions on one side and views of the Intracoastal on the other. Finally, the run crosses the Belleair Causeway before heading north on Gulf Blvd to finish back in Sand Key Park.