Saturday, December 2, 3 p.m. Start at Blaine’s H Street Plaza and run/walk 1.5 miles through fun holiday-themed obstacles. Adults $10, kids $5 or family of 5 for $30. Holiday costumes encouraged. Free bowl of chili after the race. Registration: blaineholidayharborlights.com or by 2:30 p.m. day of race.