CHICOPEE — The Greater Chicopee Chamber of Commerce’s Thriller 5K, taking place on Saturday, Oct. 25, is a fun, Halloween-themed 5K run and walk open to all ages and skill levels, with participants encouraged to come in costume to add to the festive atmosphere.

Each year, the Thriller 5K benefits a different Chicopee Chamber nonprofit member. This year, half of the event’s proceeds will go to benefit Haven Teen Center, a program of the Boys & Girls Club of Chicopee and a dedicated space for teens aged 13 to 18. This drop-in membership program is designed to offer a safe, supportive, and fun environment where teens can build skills, make lasting friendships, and explore new opportunities.

Registration opens at 9:30 a.m., with the race scheduled to begin at 11 a.m. The route starts and ends at Grise Funeral Home, 280 Springfield St., with an after-party at Rumbleseat Bar & Grille, 482 Springfield St.