Seacoast Half Marathon
USATF CertifiedSunday, October 25, 2026
Portsmouth, New Hampshire
The Experience
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!
Course Information
USATF Certified Course
NH20001BK · Expires 2030
Net Drop
+0.43
m/km
Separation
1.1%
start to finish
This course is relatively flat with minimal net elevation change. Loop course — start and finish are close together.
View USATF Course Map (PDF)Race Details
Race Day
Sunday, October 25, 2026 · 10/25/2026 08:00
Start Location
Portsmouth High School, Portsmouth, NH 03801
Course
Loop
Giveaway
T-Shirt
Registration
Register online — $79
Race Website
Official race information
Race Performance
2:04:33
9:30/mi pace
1:11:19
5:27/mi pace
943
56% female · 44% male
27 states
Avg age: 38
Finish Time Distribution (2025)
1:51:54
Top 25%
2:18:32
Top 75%
Historical Weather
☀
Avg High
61°F
☽
Avg Low
45°F
☂
Precip
0.12 in
🍃
Wind
9.8 mph
More races in New Hampshire
The Experience
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!
Course Information
USATF Certified Course
NH20001BK · Expires 2030
Net Drop
+0.43
m/km
Separation
1.1%
start to finish
This course is relatively flat with minimal net elevation change. Loop course — start and finish are close together.
View USATF Course Map (PDF)Race Details
Race Day
Sunday, October 25, 2026 · 10/25/2026 08:00
Start Location
Portsmouth High School, Portsmouth, NH 03801
Course
Loop
Giveaway
T-Shirt
Registration
Register online — $79
Race Website
Official race information
Race Performance
2:04:33
9:30/mi pace
1:11:19
5:27/mi pace
943
56% female · 44% male
27 states
Avg age: 38
Finish Time Distribution (2025)
1:51:54
Top 25%
2:18:32
Top 75%