Race Details

The event takes place on Sunday, April 11th in Newmarket, NH! Click a section below for more details.

The Course

The Half Marathon

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

The 5k starts at 7:00 AM for the fastest runners. You do not run with the Half Marathoners this year! 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!

Course Map

Post Race

All runners will be treated to craft beer from our friends at Smuttynose (21+), delicious local pizza, and an assortment of healthy snacks after the race! The best part? Everything is included with your registration!

Directions & Parking


Registration and packet pickup take place in front of the Newmarket Post Office (126 Main St, Newmarket, NH 03857). Please arrive by 30 minutes before your start time to ensure you have time to park, check-in, and stretch before the race begins.

Both the half and 5k start at 68 North Main Street, Newmarket and finish just two blocks down the street in Schanda Park.


Parking is available at Lamprey Health Care, Newmarket Junior/Senior High School, and Newmarket Elementary School. All lots are within an easy 3/4-mile walk to the start/finish!

Packet Pick-up

Packet pick-up will be held at post office parking lot on the morning of the race from 6:30 a.m. to 8:30 a.m. where you’ll receive your bib and race swag! Half marathoners will get their medals at the finish line. Swag won’t be mailed out after the event if you don’t pick yours up, so don’t oversleep!

Ready To Run?

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