Detroit Marathon Triggers Cross‑Border Closures

Thousands of runners completed the 48th Detroit Free Press Marathon on Oct. 19, 2025, despite on‑and‑off rain and gusty winds. The 26.2‑mile course ran through Detroit into Windsor, Ontario; organizers closed the Detroit–Windsor Tunnel to vehicles from 6:30 a.m. to 10:30 a.m., began road closures as early as 4 a.m., and routed runners across the Ambassador Bridge with a buffer lane separating them from traffic. The weekend included an international half‑marathon, a 13.1‑mile Detroit race and a Saturday 1‑mile kickoff event. Race officials reported no significant medical emergencies this year, a contrast with last year when a 57‑year‑old runner collapsed and died on the Canadian portion of the course. Nearby events, including Baltimore’s Running Festival (which coincided with No Kings Day protests) and Toronto’s Waterfront Marathon, also prompted road closures and transit disruptions.