The Great Bay Half Marathon & 5k by Loco Races

Online registration for the 2021 Great Bay Half Marathon & 5K is closed and there will be no race day registration.

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Conquer NH’s Great Bay Half Marathon

Ready for a breathtaking run? The Great Bay Half Marathon & 5K is back on Sunday, April 7, 2024 with the perfect mix of spectacular views and uphill climbs (you know, enough to take your breath away). Half Marathoners will traverse through beautiful winding roads, the Great Bay estuary, and the historic district of downtown Newmarket, NH! But, don’t let the captivating views fool you, this race is one for the books - and you’ll soon learn that it is one hill of a run. Don’t worry though, we will reward you with stylish swag, complimentary beer (21+), and plenty of delicious and healthy snacks!

Register Now!

Want to participate in the Great Bay Half Marathon virtually? Learn more here!

View the 2023 COVID-19 PREPAREDNESS PLAN / HEALTH AND SAFETY FAQ

What You Get

Not your average swag. Stay tuned as we get closer to race day for a 2024 update.

Premium Tech Tee

5K runners will get a premium tech tee featuring an innovative polyester honeycomb-weave fabric that’s breathable and slightly stretchy, making them great for running or working out.

CRAFT BEER & Free Pizza

As if all that wasn't enough, runners 21+ get two delicious Smuttynose craft beers! Plus, all runners get free pizza after the race along with healthy Stonyfield yogurt, energizing granola bars and Hint flavored water!

Race details, volunteer and charity info will be announced closer to race day.

Ready To Run?

Click the button below to reserve your spot at The Great Bay Half Marathon & 5k!

Register Today!