Upcoming Marathon Races Near Northwest Harwinton, CT

Name: 2026 New England Series - Day 3 (MA)
Start: 2026-06-10
End: 2026-06-10
Location: Holyoke

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Eversource Hartford Marathon, Half Marathon, Re...

Hartford, CT

Saturday, October 11th, 2025

Half

Marathon

View details for race Eversource Hartford Marathon, Half Marathon, Relay & Charity 5K

SUFFOLK COUNTY MARATHON

BAY SHORE, NY

Saturday, October 18th, 2025

View details for race SUFFOLK COUNTY MARATHON

Redcoat Retreat Marathon & 5K

North Grosvenordale, CT

Saturday, April 18th, 2026

Marathon

View details for race Redcoat Retreat Marathon & 5K

2026 Independence Series - Day 5 (NY)

Montgomery, NY

Sunday, June 7th, 2026

Half

Marathon

View details for race 2026 Independence Series - Day 5 (NY)

2026 New England Series - Day 1 (CT)

Simsbury, CT

Monday, June 8th, 2026

10K

Half

View details for race 2026 New England Series - Day 1 (CT)

2026 New England Series - Day 3 (MA)

Holyoke, MA

Wednesday, June 10th, 2026

10K

Marathon

View details for race 2026 New England Series - Day 3 (MA)

Explore more in Northwest Harwinton, CT

Distances:

5K 10K Half Marathon Marathon

Months:

September October November

Tags:

Trail Boston Qualifiers Fast Courses

State:

All Connecticut races

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