Photo: Stephen Craven · CC BY-SA 2.0 · Wikimedia CommonsRoad RunningWalking & Hiking
Chicago Shamrock Shuffle
Chicago, United States
March 21, 2027Date confirmed
8 km2 km
City RunFestive
USRunning Territory & Spot
Runs & Courses in Great Lakes Running Races: Trails, Road Races & Events
103 verified events (18 confirmed dates) and 446 races in Great Lakes Running Races with course maps and elevation profiles.
Events10318 confirmed dates
Competitions446Races & courses
Distances1 - 170.9 kmCourse distance range
Max. Elevation Gain+4,940 m D+Course elevation profile
Selected Events
Featured Events & Highlights
Photo: Stephen Craven · CC BY-SA 2.0 · Wikimedia Commons
Photo: Wilfredor · CC0 1.0 · Wikimedia CommonsRoad RunningWorld Marathon Majors Qualifier
Grandma's Marathon
Duluth, United States
June 18, 2027 to June 19, 2027Date confirmed
42.2 km21.1 km5 km
City RunLakes & Ponds+3
Photo: DS Pugh · CC BY-SA 2.0 · Wikimedia CommonsRoad Running
Stan's Donut Run
Chicago, United States
July 24, 2027Date confirmed
21.1 km10 km5 km
City RunLakes & Ponds+1
Photo: nathanmac87 · CC BY 2.0 · Wikimedia CommonsRoad RunningBoston Marathon Qualifier
Bank of America Chicago Marathon
Chicago, United States
October 9, 2027 to October 10, 2027Date confirmed
42.2 km5 km
City RunCulture & History+6
Photo: Shixart1985 · CC BY 2.0 · Wikimedia CommonsRoad RunningWorld Marathon Majors Qualifier
Detroit Marathon
Detroit, United States
October 16, 2027 to October 17, 2027Date confirmed
42.2 km21.1 km5 km1.61 km
City RunRelay+2
Photo: Tobias Alt, Tobi 87 · CC BY-SA 4.0 · Wikimedia CommonsRoad RunningWorld Athletics Label
Tcs Toronto Waterfront Marathon
Toronto, Canada
October 16, 2027 to October 17, 2027Date confirmed
42.2 km21.1 km5 km
Culture & HistoryFestive+3
Photo: Shixart1985 · CC BY 2.0 · Wikimedia CommonsRoad RunningWalking & HikingWorld Marathon Majors Qualifier
Glass City Marathon (Toledo)
Toledo, United States
Date to be announcedDate TBA
42.2 km21.1 km5 km1 km
City RunRelay+3
Photo: DS Pugh · CC BY-SA 2.0 · Wikimedia CommonsRoad RunningWalking & Hiking
Fox Cities Marathon
Appleton, United States
Date to be announcedDate TBA
42.2 km21.1 km10 km5 km
City RunCulture & History+1
Dates & Schedule
Race Calendar
March 2027
| Date | Event | Location | Disciplines | Distances |
|---|---|---|---|---|
| Mar 21, 2027 | Chicago Shamrock Shuffle | Chicago, Illinois, US | Road RunningWalking & Hiking | 8 km2 km |
June 2027
| Date | Event | Location | Disciplines | Distances |
|---|---|---|---|---|
| Jun 18, 2027 - Jun 19, 2027 | Grandma's Marathon | Duluth, Minnesota, US | Road Running | 42.2 km21.1 km5 km |
July 2027
| Date | Event | Location | Disciplines | Distances |
|---|---|---|---|---|
| Jul 24, 2027 | Stan's Donut Run | Chicago, Illinois, US | Road Running | 21.1 km10 km5 km |
October 2027
| Date | Event | Location | Disciplines | Distances |
|---|---|---|---|---|
| Oct 9, 2027 - Oct 10, 2027 | Bank of America Chicago Marathon | Chicago, Illinois, US | Road Running | 42.2 km5 km |
| Oct 16, 2027 - Oct 17, 2027 | Detroit Marathon | Detroit, Michigan, US | Road Running | 42.2 km21.1 km5 km1.61 km |
| Oct 16, 2027 - Oct 17, 2027 | Tcs Toronto Waterfront Marathon | Toronto, Ontario, CA | Road Running | 42.2 km21.1 km5 km |
Date to be announced
| Date | Event | Location | Disciplines | Distances |
|---|---|---|---|---|
| Date to be announced | Glass City Marathon (Toledo) | Toledo, Ohio, US | Road RunningWalking & Hiking | 42.2 km21.1 km5 km1 km |
| Date to be announced | Fox Cities Marathon | Appleton, Wisconsin, US | Road RunningWalking & Hiking | 42.2 km21.1 km10 km5 km |
| Date to be announced | Ultra Trail Stokely Creek | Algoma Mills, Ontario, CA | Trail Running | 170.9 km85.5 km56.4 km34.4 km |
| Date to be announced | Toronto Marathon | Toronto, Ontario, CA | Road RunningWalking & Hiking | 42.2 km21.1 km10 km5 km |
| Date to be announced | EPIC Green Bay Marathon | Green Bay, Wisconsin, US | Road Running | 42.2 km21.1 km5 km |
| Date to be announced | Buffalo Marathon Weekend | Buffalo, New York, US | Road RunningWalking & Hiking | 42.2 km21.1 km5 km |
Events by Month
Overview & Route Character
The running territory of Great Lakes Running Races (North America, Great Lakes of America, United States) is represented in the RunningCompass catalog with 103 public events and 446 individual races, including 18 events with confirmed dates for the 2026-2027 season. Core disciplines include Road Running, Walking & Hiking, and Trail Running. Key host locations include Chicago, Duluth, Detroit, and Toronto. Notable events in the selection include Chicago Shamrock Shuffle, Grandma's Marathon, and Stan's Donut Run.
Race distances span from 1 km to 170.9 km, reaching up to +4,940 m of elevation gain on the most demanding courses. Every race listed for Great Lakes Running Races includes an interactive MapLibre course map powered by OpenStreetMap, a high-resolution SVG elevation profile with gradient telemetry, and a direct GPX track download.
Questions & Answers
Frequently asked questions (FAQ)
How many running events and races take place in Great Lakes Running Races?
RunningCompass currently lists 103 verified events with 446 individual races in Great Lakes Running Races. A total of 18 events have confirmed upcoming dates, while additional annual editions include full course and distance specifications. Notable events in the selection include Chicago Shamrock Shuffle, Grandma's Marathon, and Stan's Donut Run.
What disciplines and race distances are offered in Great Lakes Running Races?
Events in Great Lakes Running Races focus on Road Running, Walking & Hiking, and Trail Running. Course distances range from 1 km entry-level races up to 170.9 km endurance challenges. Primary host cities and towns include Chicago, Duluth, Detroit, and Toronto.
What is the course profile, terrain, and elevation gain like in Great Lakes Running Races?
The most selective courses in Great Lakes Running Races climb up to +4,940 m of positive elevation gain. Each event page provides exact altitude range, ascent (+m), descent (-m), average and maximum gradient, an interactive course map, and a downloadable GPX file.
How can I find dates and register for running events in Great Lakes Running Races?
The monthly race calendar on this page groups all confirmed dates chronologically alongside annual events awaiting their next date announcement. Use the discipline, distance, and month links or switch to the interactive map view (/en/events?view=map) to inspect individual event profiles and official organizer registration links.