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Seacoast Half Marathon

October 26, 2025 Portsmouth, NH 03801 US
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Location

Portsmouth High School
50 Andrew Jarvis Drive
Portsmouth, NH  03801

The Course

The Seacoast Half Marathon course is fabulous, fast, and mostly flat with rolling hills. It includes local and town roads through urban Portsmouth, rural Rye, and historic and quaint New Castle, New Hampshire. The course features striking views of woodlands, salt marsh, the rugged seacoast, working and recreational waterways, historic homes, and the Portsmouth Harbor. There are mile markers all along the course, and split clocks at 1 mile, 5 miles, and 10 miles. There are five liquids stations with water and Gatorade on the course, approximately every two miles, and Port-a-potties just before mile 2 and mile 8. Traffic control and course marshals are located at all major intersections to guide you through the course.

Course Records

1:08:02 — Teage O'Connor, Burlington, VT
November 11, 2018

1:17:19 — Andrea Walkonen, Lebanon, NH
November 11, 2012

Street Listing

Start: Summit Dr. (Portsmouth High School)
Right on South St. to Broad St.
Right on Broad St. to Jones St.
Left on Jones St. to Sagamore Rd.
Right on Sagamore Rd. to the Foye’s Corner traffic circle.
Bear left onto Pioneer Rd.
Pioneer Rd. to Brackett Rd. Right onto Brackett Rd.
Brackett Rd. to Parsons Rd. Bear left onto Parsons Rd.
Parsons Rd. to Marsh Rd. Go straight on Marsh Rd. to Rt. 1A.
Left onto Rt. 1A, and past Oriorne Point Park and Brackett Rd.
Rt. 1A/Pioneer Rd. to Foye’s Corner, then bear right onto Sagamore Ave.
Sagamore Ave. to Wentworth Rd./Rt. 1B. Right onto Rt. 1B.
Rt. 1B through New Castle onto Portsmouth Ave., and then Newcastle Ave.
Newcastle Ave. through the stop sign, and straight to South St.
Left onto South St. to Summit Dr.
Left onto Summit Dr. and into the Portsmouth High School campus to the finish line.

USATF-NE Certification

NH20001BK

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Visionary Sponsors

Gold Sponsors

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