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Connecticut Half Marathon Calendar 2026-2027

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Monthly updates for Connecticut

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Explore the best half marathons in Connecticut for 2026-2027! Our updated list features 27 exciting races across the region. Find your next race in Connecticut below and join the running community at these great events!

May 2026
May
17
Su

Soapstone Mountain Trail Races

Trail Run 6 km 13 mi
May
17
Su

Mystic Half Marathon

10 km 13 mi
May
23
Sa

Hamden Hills Half Marathon & Flat 5K

5 km 13 mi
May
24
Su

Mine Hill Half Marathon

Trail Run Half Marathon
June 2026
Jun
6-7
Sa - Su

Fairfield Road Races

5 km Half Marathon
Jun
6
Sa

Hamden Fest Half Marathon

3 mi 13 mi
Jun
6
Sa

UConn Health Half Marathon

5 km 10 km 13 mi
Jun
8
Mo

Mainly Marathons New England Series

5 km 10 km ... 26 mi 50 km
August 2026
Aug
1
Sa

John & Jessie Kelley Half Marathon

13 mi
Aug
30
Su

Newtown Community Running Event

5 km 10 km 13 mi
September 2026
Sep
7
Mo

Faxon Law New Haven Road Race

5 km 20 km Half Marathon
Sep
12
Sa

Gulf Beach Half Marathon

13 mi
Sep
13
Su

Surftown Half Marathon

5 km 13 mi
Sep
26
Sa

Hogsback Half Marathon

13 mi
Sep
27
Su

Greenwich Half Marathon

13 mi
October 2026
Oct
4
Su

SoNo Half Marathon

3 mi 13 mi
Oct
4
Su

Norfolk Land Trust Trail Race Series

Trail Run 5 km 10 km 13 mi
Oct
10
Sa

Hartford Marathon

5 km 13 mi 26 mi
Oct
11
Su

Mohawk Mountain Race

Trail Run 5 km 10 km Half Marathon Marathon
Oct
17
Sa

Tackle the Trail - Pomfret, CT

Trail Run 6 mi 13 mi 26 mi
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