The Fire Department’s ninth annual Thanksgiving Day 5K road race will begin and end outside fire headquarters at 1 West Main St. Starting time is 8 a.m. on Nov. 28. A portion of the event’s proceeds will go to a charity. Last year, it was breast cancer research; this year’s charity has yet to be named. Registration is $20 in advance, or $25 on race day. For registration information and other particulars, go to the town’s website, www.ayer.ma.us.