Preregistrations are being accepted for the Oct. 4 Nutty Run 5K trail run/walk. The race, hosted by the YMCA of the Northwoods, begins at 10 a.m. at the trail head of CAVOC (Cedric A. Vig Outdoor Classroom). The course will be a single lap 5km through the CAVOC trails. The top three male and female runners in each age bracket will receive awards. Runners of all abilities are encouraged to pre-register by Sept. 16 to receive an official Nutty Run dri-wick shirt. Registration is $30 before Sept. 16 and $35 after that date. A group rate is available. Contact the YMCA of the Northwoods at 715.362.9622 or visit the website www.ymcaofthenorthwoods.org for more information.