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Upcoming Half Marathon Races Near Hillsborough County, NH in October, 2025

Norfolk Land Trust Trail Race Series/Haystack Mountain Challenge logo

Norfolk Land Trust Trail Race Series/Haystack M...

Norfolk, CT

Sunday, October 5th, 2025

5K
10K
Half
Trail
View details for race Norfolk Land Trust Trail Race Series/Haystack Mountain Challenge
Maine Marathon, Half Marathon and Marathon Relay logo

Maine Marathon, Half Marathon and Marathon Relay

Portland, ME

Sunday, October 5th, 2025

Marathon
Half
10K
View details for race Maine Marathon, Half Marathon and Marathon Relay
Eversource Hartford Marathon, Half Marathon, Relay & Charity 5K logo

Eversource Hartford Marathon, Half Marathon, Re...

Hartford, CT

Saturday, October 11th, 2025

5K
Half
Marathon
View details for race Eversource Hartford Marathon, Half Marathon, Relay & Charity 5K
Weir River Farm Trail Race logo

Weir River Farm Trail Race

Hingham, MA

Sunday, October 19th, 2025

Half
10K
Trail
View details for race Weir River Farm Trail Race
Monson Memorial Classic Half Marathon & 5K logo

Monson Memorial Classic Half Marathon & 5K

Monson, MA

Sunday, October 26th, 2025

Half
5K
Fast
View details for race Monson Memorial Classic Half Marathon & 5K
Seacoast Half Marathon logo

Seacoast Half Marathon

Portsmouth, NH

Sunday, October 26th, 2025

Half
View details for race Seacoast Half Marathon

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