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Great Bay Half Marathon & 5K Race Details

The Great Bay Half Marathon & 5K returns on Sunday, April 7, 2024 with the perfect mix of spectacular views and uphill climbs to “elevate” your run! For race details like start times, course info, and more, select the desired section below.

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Half Marathon

Start Tme: 11:00AM
The Great Bay Half Marathon offers a gorgeous but challenging course along the Great Bay estuary, featuring a 3.5 mile section on a well-maintained winding dirt road where runners will experience sightings of bald eagles and great blue herons before 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!

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Start Time: 11:00AM
With the Great Bay 5K, 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 before making your way into the post-race party for some extra fun!

Packet Pickup

Packet pickup will take place inside Millspace at Newmarket Mills (55 Main St, Newmarket, NH 03857) from 9:00 AM until 10:45 AM on race day. 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 will start out front of Millspace to make for a quick walk after grabbing your bib and swag!

Save time on packet pickup by adding on packet mailing at registration! Already registered? Don’t worry! You can add it on through your EnMotive account. Please note, we are unable to mail out packets after the packet mailing deadline has passed.


Parking will be available at Lamprey Health Care, Newmarket Junior/Senior High School, and Newmarket Elementary School on race day. It’s a quick 3/4 mile walk to the starting line, so you can warm up those feet before the big race.

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Post Race Party

The fun doesn’t stop once you cross the finish line! Head over to the American Legion (151 Main Street) after your run for complimentary craft beer (21+), delicious food, and an assortment of healthy snacks—all included with your registration!

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2023 medal


The half marathon will award prizes for the top 3 men and women finishers overall, and to the top 3 male and female in the following categories: 19 & under, 20-29, 30-39, 40-49, 50-59, 60-69, and 70+.

The 5K will award prizes to the top 3 men and women finishers overall, and to the top 3 male and female in the following categories: 14 & under, 15-19, 20-29, 30-39, 40-49, 50-59, 60-69, and 70+.

All winners will be contacted within 2-3 business days after the race. There will not be an awards tent or ceremony at the event.

Ready to Run?

Reserve your spot for the Great Bay Half Marathon & 5K.