Harlon Block Half Marathon
Race Day Weather
Warm, light rain expected
Runners will face temperatures starting at 66°F and peaking at 71°F, with high humidity at 81% and a dew point of 61°F. A headwind throughout at 16 mph, with gusts up to 31 mph, will challenge pacing. Runners should adjust their pace conservatively and stay hydrated due to the warm and humid conditions.
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Race Info
The Harlon Block Half Marathon debuts in Weslaco, Texas on November 8, 2026, starting and finishing at Harlon Block Sports Complex. The race is named for Harlon Block, a Weslaco native and Marine who helped raise the flag atop Mount Suribachi during the Battle of Iwo Jima in 1945. Alongside the standard half marathon, runners can enter the Harlon Block Memorial Ruck, a weighted-pack division on the same course. Proceeds from both events go toward a permanent memorial statue for Block that broke ground in Weslaco in February 2026.
