The Great Lakes Marathon Series is a collaboration of 23 marathons that take place along the 5 Great Lakes. The goal of this series is to invite the running world to come and enjoy the unique beauty of each race, while simultaneously raising awareness of conservation and restoration efforts of the Great Lakes as well as focusing on the Great Lakes ecosystem and economies. Please note that the Great Lakes Marathon Series can only be accomplished by running the 26.2 mile distances offered through the races in the Great Lakes Marathon Series. Races run at any other distance or locations will not count towards the completion of the race series.


The Great Lakes Marathon Series is for runners who are interested in experiencing a variety of marathons along the Great Lakes, while at the same time making a positive impact on the eco-system of the Great Lakes Basin.

The series is for fast and slow runners alike with individual prizes being awarded based on the number of Great Lakes races you complete throughout your running career. We will award prizes at benchmarks along the way, including a grand prize for completing all races in the series!

The Great Lakes Marathon Series organizers invite you to sign up for the series and log your miles. Through this site you will be able to upload each of your finishing times and track your progress!


The Great Lakes Marathon Series training shirt is a Greenlayer, Helium E2 shirt with a simple GLMS logo design.  To order a training shirt, please email Tara@GrandmasMarathon.com

Price of the Great Lakes Marathon Series training shirt is:  $30

Great Lakes Marathon Series training shirts are available for purchase in both men’s and women’s sizes!

Below is a list of our participating #GLMS races in order by race day.

Mercy Health Glass City Marathon
Toledo, OH – April 28, 2019

Wisconsin Marathon
Kenosha, WI– May 4, 2019

Goodlife Fitness Toronto Marathon
Toronto, ON– May 5, 2019

Rite Aid Cleveland Marathon
Cleveland, OH – May 19, 2019

Cellcom Green Bay Marathon
Green Bay, WI – May 19, 2019

Buffalo Marathon
Buffalo, NY – May 26, 2019

Grandma’s Marathon
Duluth, MN – June 22, 2019

Charlevoix Marathon
Charlevoix, MI – June 22, 2019

Two Hearted Trail Marathon
Paradise, MI – June TBA

Waugoshance Trail Marathon
Carp Lake, MI – July TBA

Grand Island Trail Marathon
Munising, MI – July TBA

Marquette Marathon
Marquette, MI – September 1, 2018

Erie Marathon at Presque Isle
Erie, PA  – September 9, 2018

MVP Health Care Rochester Marathon
Rochester, NY – September 23, 2018

Oktoberfest Marathon
Spring Lake, MI – September 22, 2018

Sleeping Bear Marathon
Empire, MI – October 6, 2018 

Bank of America Chicago Marathon
Chicago, IL  – October 7, 2018

Towpath Marathon
Cleveland, OH – October 7, 2018

Whistlestop Marathon
Ashland, WI – October 13, 2018

Niagara Falls International Marathon
Niagara Falls, ON –  October 14, 2018 

Detroit Free Press/Chemical Bank Marathon
Detroit, MI – October 21, 2018

Scotiabank Toronto Waterfront
Toronto, Ontario, Canada – October 21, 2018

Hamilton Marathon
Hamilton, ON – November 4, 2018