Get ready to run at Boomer Lake Park in Stillwater, OK, where you can choose between 5K, 10K, or half marathon distances—the 5K and 10K use a 3.11-mile out-and-back course (run once or twice respectively), while the half marathon covers a 3.28-mile out-and-back route run four times. Head to Shelter #3 by the Boomer Park Splash Pad on the west side of the lake, arrive by 7:30 AM for packet pickup, and note that registration is online only through RunSignup with pricing that increases the Monday before race day. You'll have up to 6 hours to complete your race, starting at 8:00 AM sharp.