Cannonball Marathon
Race Day Weather
Mild start, warm finish ahead
Runners will face a temperature rise from 51°F at the start to 69°F by the finish, with a maximum wind speed of 7 mph acting as a light non-factor. Humidity will hover around 63%, suggesting a comfortable but slightly humid day. As temperatures climb, it’s advisable to adjust pace in the later laps and ensure consistent hydration throughout to manage the warming conditions.
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Race Info
The Cannonball Marathon is an annual marathon, half marathon, 10K, and 5K held in Greensboro, North Carolina, one of the longest-running road races in the state. The marathon and half marathon share a course starting and finishing at Jaycee Park within Country Park, following the Atlantic & Yadkin Greenway through north Greensboro; marathon runners complete two loops. The marathon is a Boston Marathon qualifier. Proceeds from the race support the adjacent Greensboro Science Center.