Seacoast Half Marathon

October 29, 2023 to benefit Gather Portsmouth, NH 03801 US
Caring for the coast, one step at a time.
Countdown to Race Day


Seacoast Half Marathon

$80 8:00AM EDT - 11:30AM EDT Price increases after July 31, 2023 at 11:59pm EDT

Race Website

Additional race information can be found at


The Seacoast Half Marathon is one of the longest-running half marathons in coastal New Hampshire. Join us for our 18th annual race on Sunday, October 29. The Seacoast Marathon is unique in that ALL of the revenue (after race expenses) goes to local non-profit beneficiaries. This year's beneficiary is Gather, an amazing non-profit dedicated to making the Greater Seacoast a hunger-free community. So gather up your running shoes, and gather up your friends and register for this feel good race of the year. And consider going the extra mile for your neighbors in need by making a donation to Gather when you register, and/or set up your own fundraising page to get family and friends help your fundraising efforts. You can use your donation/fundraising to earn free registration in the 2024 Seacoast Half Marathon!

Race Contact Info

If you have any questions about this race, click the button below.


  • Where will the race start and finish?

The Seacoast Half Marathon will start and finish at Portsmouth High School, Portsmouth, NH.

  • What time is pick-up on race day, and when does the race start?

Packet pick-up will open at 7:00 on Sunday, Oct. 29. Walkers will start at 8:00, and runners will start at 8:30. If staggered starts are required, start times will be adjusted appropriately, and all racers will be notified of the change.

  • Can I still register after online registration closes?

Yes! Online Registration closes on 10/25 at 11:59pm. If you miss the online deadline, you can register in-person at Runner's Alley in Portsmouth on Saturday 10/28 from 10am-4pm or on race day on 10/29 at Portsmouth High School from 7am-8am. Checks and credit cards are accepted. Checks should be made out to the beneficiary.

   • Is this a charity race?

Yes it is! 100% of the proceeds go to Gather, our non-profit beneficiary for 2023. You can learn more about Gather at

If you have created a fundraiser page, please remember that the deadline for donations is October 29 at 11:59PM. Thank you for supporting Gather!

   • Who can I contact if I have more questions?

Send an email to  We'll get back to you as quickly as we can.


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