Market Square Day 10K
About this race
Each year, the 10K Road Race gets the Market Square Day celebration off on the right foot. With a starting line in the heart of Downtown Portsmouth, the Race typically draws nearly 1,000 runners who wind their way through the streets of Portsmouth ending with the finish line at historic Strawbery Banke.
In 2005, we joined forces with other area races to create the Seacoast Road Race Series. From May through November, runners participate in races ranging in distance from 5K – 10K in communities throughout the Seacoast. The Series creates healthy (literally) competition and serves to introduce runners to a variety of races. The Series expanded to seven races and continues its popular ‘run’ with new and seasoned athletes.
Pick your distance
Running
Market Square Day 10K
Typical race-day weather
Based on 7 years of historical conditions on this event's race dates in Portsmouth.
Course
Route map and elevation profile
No course map published yet.
The organizer hasn't released a route for this event, and we don't publish guesses. If you're the organizer, send us a GPX file and we'll draw the profile.
Reviews
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Results — Market Square Day 10K
Other races near Portsmouth
Different organizers, within 40 miles, in the next three months
18th Annual Celebrate Pink 5K Run & Walk
Seacoast Half Marathon
Great Island 5K
Seacoast Cancer 5K Run/Walk
🏃 Plan Your Next Race in Portsmouth
Find upcoming events by distance:
- Portsmouth 5K Races 3 races
- Portsmouth Running Calendar 2026 6 races
Where this page comes from. Race details were last updated on . We re-check listings regularly and again in the week before race day.
- Entries, prices, waves and inclusions — the event's official registration page
- Temperature and humidity — Copernicus ERA5 reanalysis via Open-Meteo (CC BY 4.0)
- Elevation and terrain relief — Copernicus DEM GLO-90, ESA (CC BY 4.0)
- Comparisons and counts — Race Discovery calendar, 6 Portsmouth events
Spotted something wrong? Tell us and we'll fix it.