Groundhog Day Marathon By Brian Hunt | February 4, 2021 Calendar Add to Calendar Add to Timely Calendar Add to Google Add to Outlook Add to Apple Calendar Add to other calendar Export to XML When: February 6, 2021 @ 8:00 am – 2:00 pm 2021-02-06T08:00:00-05:00 2021-02-06T14:00:00-05:00 Where: Millenium Park 1400 Maynard Ave SW Grand Rapids MI 49534 Race Discounts 10% Off Sign-up!