Runners already face a daunting challenge when they line up at the start of a marathon, but increasingly they might find themselves with another obstacle to reckon with: global warming.

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The featured event was the Jamestown Half Marathon, a Colonial Road Runners Grand Prix event (the 16th of 2025), and also a Hampton Roads Super Grand Prix event. There were 446 entrants in all three races (there was also a Discovery Mile fun run, as well as some virtual entries), with 258 finishers in the half marathon, and 117 finishers in the 5K.

The race starts at 8:00 a.m. ET with the professional men's wheelchair division, followed by the women's wheelchair division at 8:02 a.m. ET. Elite runners begin later, with professional women starting at 8:35 a.