William A. Irvin 5K
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William A. Irvin 5K - Grandma's Marathon
The William A. Irvin 5K is a 3.1-mile race held in Duluth, Minnesota as the kickoff event to Grandma’s Marathon weekend. The 2026 edition takes place on June 19, 2026, with the course starting and finishing near the historic William A. Irvin ore boat in Canal Park and providing a scenic tour of the city.
Course and race-day services include a single aid and water station located just before the halfway point, a marked medical tent near the finish area, and a secure finish area where finishers receive a medal. The course carries a USATF certification (Code MN25012MAB). A pulse start corral system organizes participants by expected pace.
Participant requirements and logistics noted by the organizer include visible race bibs pinned on all four corners, completion of emergency medical information on the bib, and a one-hour time requirement for the course. Race packet pickup is handled at the weekend fitness expo and includes distribution of commemorative shirts. A tearaway tag on the bib is redeemable for a post-race drink; alcoholic beverages require an age-verifying wristband.
Entry options include an in-person race with a tiered entry fee structure and a limited virtual race option. Age-division awards are presented across multiple categories and are mailed to winners after the event. Visit the organization's website for the most recent information.
