Race Details

The event takes place on Sunday, March 26th in Newmarket, NH! Click a section below for more details.

The Course

The Half Marathon

Start Time: 11:00AM

The Great Bay Half boasts a challenging but gorgeous course along the Great Bay estuary, featuring a 3.5 mile section on a well-maintained winding dirt road, sightings of bald eagles and great blue herons, and a dramatic finish in the heart of historic Newmarket. Just picture yourself on the final downhill stretch of closed downtown streets running past the centuries-old fieldstone mill buildings!

The 5K

Start Time: 11:00AM

The 5k starts at 11:00 AM! You’ll run (or walk) the same course as the half marathon up to Mile 2, at which point you’ll veer right into town. You will finish with a nice downhill stretch through the heart of downtown!

Post-Race Party

Head over to the American Legion (151 Main Street) after you’ve crossed the finish line and be treated to craft beer from our friends at Smuttynose (21+), delicious food, and an assortment of healthy snacks after the race! The best part? Everything is included with your registration!

Directions & Parking



Parking is available at Lamprey Health Care, Newmarket Junior/Senior High School, and Newmarket Elementary School. A shuttle will be provided to the start, or feel free to take a quick 3/4 mile walk. The shuttle can be picked up in front of Newmarket Jr/Sr High School. Since the finish line is much closer to the parking lots, a return shuttle will not be provided.

Packet Pick-up

Packet pickup will take place inside Millspace at Newmarket Mills (55 Main St, Newmarket, NH 03857) from 9:00 AM until 10:45 AM. Please arrive at least 45 minutes before the start time to ensure you have time to park, check-in, and stretch before the race begins.

Both the half and 5k start out front of Millspace to make for a quick walk after grabbing your bib and swag.

Ready To Run?

Reserve your spot today at The Great Bay Half Marathon & 5k!