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Connecticut Half Marathon Calendar 2025-2026

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Explore the best half marathons in Connecticut for 2025-2026! Our updated list features 11 exciting races across the region. Find your next race in Connecticut below and join the running community at these great events!

October 2025
Oct
5
Sunday

Norfolk Land Trust Trail Race Series

Trail Run 5 km 10 km Half Marathon
Oct
5
Sunday

SoNo Half Marathon

5 km Half Marathon
Oct
12
Sunday

Mohawk Mountain Race

Trail Run 5 km 10 km Half Marathon Marathon
Oct
18
Saturday

Tackle the Trail - Pomfret, CT

Trail Run 10 km Half Marathon Marathon
Oct
19
Sunday

Ridgefield Half Marathon

5 km 7 mi Half Marathon
Oct
26
Sunday

The Reservoir Run Half Marathon

5 km Half Marathon
November 2025
Nov
1
Saturday

Airline Trail Ghost Run

13 mi
Nov
8
Saturday

Roxbury Marathon

Half Marathon Marathon 50 km
Nov
15
Saturday

Hillacious Half Marathon

4 mi 13 mi
Nov
16
Sunday

Tarrywile Half Marathon

Trail Run 10 km Half Marathon Marathon
March 2026
Mar
28
Saturday

Savin Rock Marathon

Half Marathon Marathon
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