Lace up for the second annual Rock Solid 10K, 5K, and 1-Miler at Bluebird Park in Isanti, MN—an out-and-back course starting at the corner of Isanti Parkway and 3rd Avenue that benefits The Rock Solid Foundation, a nonprofit honoring Jesse Melvin Haugen's passion for physical challenges while supporting people facing unexpected hardships. You'll enjoy a family-friendly atmosphere with local food, drinks, and beer available for purchase, knowing that all race proceeds go directly to TRSF's mission of providing financial assistance and resources to those in need. Keep in mind that late registrations after May 3 at 11:59 pm will still get a race t-shirt in your requested size, though it may arrive after race day instead of at the event.