Market Square Day 10K 2026
- Date
- June 13, 2026
- Location
- Market Square, Portsmouth, NH
- Distance
- Market Square Day 10K
From the Organizer
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.
Race start time is 9am in Market Square.
For all information, including bib pick up dates/location, bib transfer, having a friend/family member pick up your bib, go to: https://proportsmouth.org/events/market-square-day-10k/
Events
Weather
Race-Day Forecast
Live forecast from the U.S. National Weather Service.
Race Day
Saturday, 6/13
High
86°
Low
62°
Conditions
Slight chance rain showers
Chance of Rain
21%
Wind
0 to 5 mph
Host City
About Portsmouth, NH
Population
22,332
as of 2023
Nearest Airport
PSM
Portsmouth International Airport at Pease · 3 mi
Major Hub
PWM
Portland International Jetport · 46 mi
Time Zone
Eastern Time
From Endurance Grid
A mid-size host city. Enough lodging and amenities to keep race weekend easy, without big-city sprawl.
Race Location
Your Next Start Line
What Are You
Waiting For?
Every finish line starts with a single decision. Claim your spot at Market Square Day 10K 2026, put it on the calendar, and turn “someday” into a start date.
Coming Up
More Running races near Portsmouth, NH
LIVE Saunders at Rye Harbor 10K
10K
4 miles away
Seacoast Cancer 5K Run/Walk
5K
Less than a mile away
18th Annual Celebrate Pink 5K Run & Walk
5K
Less than a mile away
2nd Annual New England Ostomy 5k
5K
6 miles away
From Endurance Grid
About This Sport
Endurance Grid is here to help you understand the sport, decide if it's the right fit, and learn how to prepare. For course distances, logistics, and race-day specifics, always defer to the race organizer's event page.
The 10K is the distance where running stops feeling like a starting point and starts feeling like a sport. Long enough to require a real training block. Short enough that race day is fully manageable for a first-timer who's put in the work.
Race day energy at a 10K is community at its best — strangers cheering you by name, people moving toward the same goal, an atmosphere that solo training can't replicate. It's fast enough that you'll spend the whole race pushing rather than managing your effort.
This is also the distance that builds the base for everything else. Most athletes who go on to run half marathons, do triathlons, or compete in HYROX started here. What you need: running shoes fitted to your stride, a training plan, and the race on your calendar. The registration is what makes the deadline real.
How long to train: 4–8 weeks for most fitness levels.
Running
From 5K to marathon, running races are the most accessible entry point into endurance sport. There's a distance for every fitness level and a community at every start line.
Frequently Asked Questions (FAQs)
- What is the Market Square Day 10K 2026?
- Market Square Day 10K 2026 is a running race held in Portsmouth, New Hampshire on June 13, 2026. It is one of the many endurance events listed on Endurance Grid, a multi-sport endurance event calendar covering running races, triathlons, HYROX, and more endurance sports across the United States. Find more running races near you or explore our sports guides to learn what race day actually feels like.
- When and where is the Market Square Day 10K 2026?
- Saturday, June 13, 2026 in Portsmouth, New Hampshire at Market Square, Portsmouth, NH. Check the event page for exact start times and wave schedules.
- How do I register for the Market Square Day 10K 2026?
- Registration is handled through the event's registration page. Confirm pricing and distances there, and sign up.
Market Square Day 10K 2026
Jun 13, 2026