Groundhog Day Marathon
Groundhog Day Marathon turns a Michigan winter loop into a deliberately repetitive challenge, with snow, cold, and twenty-six chances to regroup.
Every link above goes to the race, its timing provider, or an official registration partner. Last checked July 21, 2026.
Quick facts
- Multi-loop winter marathon in Millennium Park.
- Certified Boston Qualifier despite the playful format.
- Friday half marathon enables the Groundhog Double.
- Snow and ice can matter more than the flat elevation profile.
About the Groundhog Day Marathon
Trivium Racing stages this February marathon as a playful tribute to the movie's repeating day. The small field circles Millennium Park, and a Friday half marathon lets ambitious runners attempt the Groundhog Double.
Course
The certified marathon repeats a short park loop many times on paved paths. The format simplifies aid and split management, but accumulated turns, slick footing, and mental repetition become central to the race.
Race-day weather
Expect genuine winter conditions. Snow, ice, wind, and single-digit temperatures are possible, and even a clear day can leave frozen or slushy patches underfoot.
Past Groundhog Day Marathon dates and results
| Year | Date | Status | Results |
|---|---|---|---|
| 2027 | Saturday, February 6, 2027 | Upcoming | — |
| 2026 | Saturday, February 7, 2026 | Completed | Open results |
| 2025 | — | Completed | Open results |
| 2024 | — | Completed | Open results |
Groundhog Day Marathon FAQ
When is the Groundhog Day Marathon?
The 2027 Groundhog Day Marathon is on Saturday, February 6, 2027.
How do I register for the Groundhog Day Marathon?
You can register for the Groundhog Day Marathon at runsignup.com.
Can I use the Groundhog Day Marathon for Boston qualifying?
Marathon Scout marks the Groundhog Day Marathon as a Boston qualifier. Check the current Boston qualifying times and confirm current certification with the race before registering.
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