Great Island 5K
- Date
- October 11, 2026
- Distance
- 5K Run and Walk · 5K Race Walk · Kids Fun Run
From the Organizer
Our 5K is held on one of the most beautiful courses in New England. It starts and finishes at the Great Island Common at the mouth of the Piscataqua River. The course runs through the scenic and historic roads of New Castle NH. We have the largest free raffle in New England, great food and a high quality race hat to the first 700 registered. We also offer 3 kids fun runs and a new playground to entertain the whole family
All proceeds of the GI5K go to Charity.
We hope you can join us for the 32nd Great Island 5K!
Distances & Pricing
Race Location
About This Sport
From Endurance Grid's Founder
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.
Coming Up
More running races in NH
Frequently Asked Questions (FAQs)
- What is the Great Island 5K?
- Great Island 5K is a running event held in New Castle, NH. Learn more about the different endurance sports here.
- When and where is the Great Island 5K?
- Sunday, October 11, 2026 in New Castle, NH at 265 Wentworth Road, New Castle, NH. Check the official event page for exact start times and wave schedules.
- How do I register for the Great Island 5K?
- Registration is handled through their official registration page. Confirm pricing, distances available, and sign up there.
Great Island 5K
Oct 11, 2026