Birr Monster Mash Mile Fun Run

Join us for the inaugural Birr Monster Mash Mile Fun Run at Wailoa State Park in downtown Hilo, Hawaii, on October 18, 2025! This spooktacular event offers a thrilling 1-mile race for runners and walkers of all ages, starting at 9:00 AM, with a special 400-yard race for kids under 12 at 9:30 AM. Dress up in your Halloween best for a chance to win top prizes for speed and style, including special rewards for all young participants. This family-friendly race is free for Birr members and kids under 12, with a suggested $10 donation for non-members. Enjoy complimentary refreshments, a festive atmosphere, and a morning of fun, fitness, and Halloween spirit in beautiful Hilo!