Seacoast Cancer 5K Run/Walk
- Date
- September 20, 2026
- Distance
- 5K Run/Walk · 1 Mile Walking Loop · 5K Virtual Run/Walk
From the Organizer
Every dollar raised by the Seacoast Cancer 5K Run/Walk stays in our community and allows patients to live their lives to the fullest while receiving cancer treatments all the way through survivorship. Your support allows the multi-disciplinary care team at the Mass General Cancer Center at Wentworth-Douglass Hospital to provide complimentary supportive, wellness and integrative therapies to care for the mind, body and soul of patients and their families. These services offered through the Survivorship and Wellness Program make an incredible impact for patients every day!
This event is rain or shine!
Events
Weather
Typical Conditions
It's too far out for a forecast, so here's what weather on this date is normally like in the area. A race day forecast will replace this as race week approaches.
Typical High
70°
Typical Low
50°
Chance of Rain
31%
Based on US Climate Normals data from Greenland, 4 mi from the venue.
Host City
About Portsmouth, NH
Population
22,332
as of 2023
Elevation
23 ft
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 Seacoast Cancer 5K Run/Walk, put it on the calendar, and turn “someday” into a start date.
104
Days to train
- Race
- Seacoast Cancer 5K Run/Walk
- Date
- September 20, 2026
Coming Up
More Running races near Portsmouth, NH
Market Square Day 10K 2026
10K
Less than a mile away
LIVE Saunders at Rye Harbor 10K
10K
4 miles 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.
With running, there's a distance for every fitness level, a community at every start line, and nothing beats the feeling of crossing a finish line you trained for.
Running is an endurance sport that rewards consistency, and showing up every week compounds in ways that will surprise you.
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 Seacoast Cancer 5K Run/Walk?
- Seacoast Cancer 5K Run/Walk is a running race held in Portsmouth, New Hampshire on September 20, 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 Seacoast Cancer 5K Run/Walk?
- Sunday, September 20, 2026 in Portsmouth, New Hampshire at 67 Corporate Drive, Portsmouth, NH. Check the event page for exact start times and wave schedules.
- How do I register for the Seacoast Cancer 5K Run/Walk?
- Registration is handled through the event's registration page. Confirm pricing and distances there, and sign up.
Seacoast Cancer 5K Run/Walk
Sep 20, 2026