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By completing this registration, you agree to and fully understand the following: Running is a potentially hazardous activity and I should not enter and run/walk unless I am medically able and properly trained. I agree to abide by any decision of race officials relative to my ability to safely compete in this race. I take responsibility for my own actions, and I assume all risks associated with this race, including, but not limited to: falls, injuries, death, damage to property, contact with other participants, effects of traffic, etc. I, for my heirs, my assigns, and myself, waive and release the Seacoast Half Marathon organizing committee, the City of Portsmouth, the Towns of Rye and New Castle, The Birchtree Center, Runner’s Alley, all sponsors of this race, the race volunteers, and the State of N.H. from any and all claims and liabilities of any kind whatsoever arising from my voluntary participation in this event, regardless of whether such liability results from carelessness or negligence of the persons/organizations named in this waiver. I grant the Seacoast Half Marathon permission to use my photo or likeness to help promote the race.  Rollerblades, skateboards, strollers and pets are not allowed. RACE REGISTRATIONS ARE NOT TRANSFERABLE. ALL ENTRY FEES ARE NON-REFUNDABLE.

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This year, we are offering men's and women's styles and sizes. All registered racers will receive a long-sleeve, technical Seacoast Half Marathon race shirt.

This year's race beneficiary, The Birchtree Center, transforms the lives of children and youth with autism. Since the nonprofit first opened its doors in 2002, the number of students with autism in New Hampshire has increased nearly sixfold. Over that same time, Birchtree has provided over half-a-million hours of one-on-one programming and instruction to students with autism at school, at home, and in our community. Your donations are much needed, and greatly appreciated.




The Seacoast Half Marathon includes a mixed team competition. For those competing as part of a team, the top 5 times, including at least 2 women's times, will count as your team's time in the competition.

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