Detweiller at Dark 2026

Detweiller at Dark transforms Detweiller Park in Peoria, Illinois into a nighttime cross-country meet illuminated by 135,000 watts of lights. This summer evening race series, presented by Under Armour, begins its first main race at 7:00 PM, with subsequent high school races continuing late into the night. The event utilizes Detweiller Park’s historic cross-country course and attracts over 2,300 participants. The schedule includes an Open Race, junior high girls and boys races, high school open and varsity-style races, and a free kids’ fun run approximately 1,200 meters long. Recent middle school graduates may enter either the middle school or high school races, and recent high school graduates can opt for the high school or open race. This flexibility accommodates runners transitioning between school levels, as well as adults.