Running Races in Portsmouth, New Hampshire 2026 | Browse All Races

There are 3 running races in Portsmouth, New Hampshire in 2026. The next is the Seacoast Cancer 5K Run/Walk on September 20. Distances include 5K races, half marathons.

Seacoast Cancer 5K Run/Walk

Sun, Sep 20 · Portsmouth, NH Portsmouth

Virtual 1 Mile Walking Loop5K Virtual Run/Walk5K Run/Walk

From $30 Open

18th Annual Celebrate Pink 5K Run & Walk

Sun, Sep 27 · Portsmouth, NH Portsmouth

Virtual 5K Run & Walk - AdultVirtual Option5K Run & Walk - SILVER STAR (allows for Hope Chest Gift Cards) +3

From $30 Open

Seacoast Half Marathon

Sun, Oct 25 · Portsmouth, NH Portsmouth

Road Seacoast Half Marathon

From $79 Open

Running Races in Portsmouth, New Hampshire — 2026

Seacoast Cancer 5K Run/Walk

18th Annual Celebrate Pink 5K Run & Walk

Seacoast Half Marathon

All New Hampshire Races