Seacoast Half Marathon
About this race
The Seacoast Half Marathon is one of the longest-running half marathons in coastal New Hampshire. Join us for our 20th annual race on Sunday, October 26. This year's beneficiary is an amazing nonprofit dedicated to improving lives in the Greater Seacoast. So pick up your running shoes, gather your friends, and register for the feel-good race of the year. And consider going the extra mile for your neighbors in need by making a donation when you register. You can also set up your own fundraising page and get family and friends to help with your fundraising efforts. You can even use your donation/fundraising to earn free registration in the 2025 Seacoast Half Marathon!
Join fellow runners on October 23, 2021 for the Seacoast Half Marathon. It's a fantastic Half-Marathon, 10.5K, 5K, 36.6K featuring a flat and fast course in Portsmouth.
Pick your distance
Running
Virtual Seacoast Half Marathon
Run or walk the virtual half marathon course of your choosing between October 23 and October 31. Post your time to RunSignUp when you have finished your race. With this option, you'll get a long-sleeve race shirt, and a half marathon finisher's medal.
Virtual Seacoast Quarter Marathon
Run or walk the virtual quarter marathon course of your choosing between October 23 and October 31. Post your time to RunSignUp when you have finished your race. With this option, you'll get a long-sleeve race shirt.
Virtual SHM 5K
Run or walk the virtual 5K course of your choosing between October 23 and October 31. Post your time to RunSignUp when you have finished your race. With this option, you'll get a long-sleeve race shirt.
Seacoast Combo (Virtual 5K, Quarter Marathon & Half Marathon)
Run or walk the virtual 5K, Quarter Marathon, AND Half Marathon between October 23 and October 31. Post your times on RunSignUp when you have finished each event. With this option, you'll get a long-sleeve race shirt, a Half Marathon finisher's medal.
Seacoast Half Marathon (in-person)
The "live" Seacoast Half Marathon will start and finish at Portsmouth High School, and travel through the beautiful coastal communities of Rye and New Castle, New Hampshire. You'll get a long-sleeve race shirt, and a half marathon finisher's medal.
Weather Overview
These values reflect historical conditions on the race dates in Portsmouth in 2021, from Open-Meteo archive data.
About Portsmouth
Seacoast Half Marathon takes place in Portsmouth, New Hampshire, United States. The local timezone is America/New_York.
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Race information has been sourced from the event's official website and other publicly available resources. For the most up-to-date details, please refer to the official website directly. If you notice any incorrect or missing information, don't hesitate to reach out to us by email.