NOTE: Entry fees are non-refundable. Entries cannot be deferred to another year.

Registration Fees

Grandma's Marathon:

Join us for a scenic 26.2 mile journey along Lake Superior! Register before December 31 and receive a FREE commemorative full-zip fleece lined jacket. Race is limited to the first 9,000 registrants.

Garry Bjorklund Half Marathon: Sold out

Full Great Grandma's Challenge:

The Full Great Grandma's Challenge allows you the chance to challenge yourself to the fullest by running the William A. Irvin 5K on June 15 AND Grandma's Marathon on June 16. Finishers of the Great Grandma’s Challenge will receive: commemorative Great Grandma's Challenge gear (TBD), 2 tech finisher shirts AND 2 finisher medals. Register before December 31st and you'll also receive a FREE full-zip, fleece lined jacket. Challenge is limited to the first 500 registrants.

Half Great Grandma's Challenge: Sold out

The Half Great Grandma's Challenge allows you the chance to challenge yourself to the fullest by running the William A. Irvin 5K on June 15 AND the Garry Bjorklund Half Marathon on June 16. Finishers of the Great Grandma’s Challenge will receive: commemorative Great Grandma's Challenge gear (TBD), 2 tech finisher shirts AND 2 finisher medals. Challenge is limited to the first 500 registrants.

William A. Irvin 5K:

The William A. Irvin 5K kicks off an exciting weekend of running events on Friday, June 15, 2018. Race is limited to the first 2,000 registrants.

Thank You To Our Presenting and Major Sponsors

Event Schedule

  • June 15 6:00 PM CDT - 25th Annual William A. Irvin 5K

  • June 16 6:15 AM CDT - 28th Annual Garry Bjorklund Half Marathon

  • June 16 7:40 AM CDT - 42nd Annual Grandma's Marathon - Wheelchair Start

  • June 16 7:45 AM CDT - 42nd Annual Grandma's Marathon

Contact Information

Event Location

Duluth, Minnesota, United States

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