Detroit Free Press Marathon to Host 50,000 Runners
The annual race weekend kicks off this Friday and features eight events that cross international borders between Detroit and Windsor.
Updated on Oct. 16, 2026 in Running
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The Detroit Free Press Marathon weekend begins Friday, October 16, 2026, bringing an expected 50,000 runners to the city for a series of eight distinct races. The course is notable for its international route, which traverses both the Detroit-Windsor Tunnel and the Ambassador Bridge.
Why it matters
As the largest road race in Michigan, the event serves as a significant regional fitness gathering that draws participants from both sides of the border. It provides a unique competitive experience by incorporating an underwater mile segment.
The race series, which began in 1978, features eight events and requires runners to cross two international borders. Participants in the Kids Marathon must complete 25.2 miles of their journey prior to arriving for the final mile in Detroit.
The players
Detroit Free Press Marathon
This annual athletic event is recognized as the largest road race in Michigan.
The details
The race weekend includes a fitness expo at Huntington Place before culminations at Campus Martius. Runners navigate an underwater mile through the Detroit-Windsor Tunnel before returning to Michigan via an international bridge.
Timeline
Race weekend activities begin at Huntington Place on Friday, October 16, 2026.
The main marathon races are scheduled to begin on Sunday, October 18, 2026.
The Detroit Free Press Marathon series dates back to 1978.
Season Trajectory
This weekend serves as the primary marquee event on the local running calendar, solidifying Detroit as a hub for international endurance athletics. The high turnout numbers cement the marathon's standing as a central pillar of the city's annual fitness and tourism cycle.
Participants should note that crossing two international borders requires specific identification and preparation for the tunnel and bridge segments. The finish line at Campus Martius will draw significant crowds, potentially impacting local traffic and transit routes throughout the weekend.
The takeaway
Runners participating in the weekend events should ensure they have proper documentation for the international border crossings. Planning ahead for race-day road closures in downtown Detroit will help residents and spectators navigate the city more efficiently.
Further reading
For more information on upcoming local events, visit the Running section.
More information
For complete details, view the marathon race information and course maps.
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