New Castle 10K
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New Castle 10K
The New Castle 10K is a waterfront road race held on Sunday, April 25, 2027, at Great Island Common in New Castle, New Hampshire. The course follows the local "New Castle Loop" and passes the Portsmouth Shipyard, the naval prison, the Piscataqua River, lobster boats, sailboats, a lighthouse, and the Wentworth by the Sea Hotel and Marina, including crossings of four bridges. The course time limit is 1 hour 45 minutes, which corresponds to a 17:00 minute per mile pace.
Logistics include limited VIP parking at Great Island Common, general parking with shuttle service from Portsmouth High School, and a runner drop off and pick up area at the front driveway of Great Island Common. There is no street parking permitted on public streets in New Castle. Early bib and shirt pickup is available the day before the race at the Millennium Running Retail Store. Race day bib pickup is available at the registration tents near the start/finish. Gear check will be provided near the registration area.
On-course support includes two water stops roughly every two miles. Post-race refreshments include water, fresh bananas, snacks, and yogurt. Official results, free race photos, and finisher video links are published online after the event. Awards are given to the top three overall men and women by gun time and to the top three male and female in each five-year age group by net time.
The event offers an in-person and a virtual option. Race apparel and finisher medals are limited to the first 1,200 registered participants combined. Virtual registrants earn miles toward the Elliot Millennium Series Jacket but do not receive points for the Delta Dental Points Chase. The event supports Girls on the Run New Hampshire as its official charity partner. Visit the organization's website for the most recent information.
