Half Marathon Races in Connecticut

Find upcoming half marathon races in Connecticut — with dates, locations, and direct registration links.

20 upcoming half marathon races found in Connecticut

Upcoming Half Marathon Races in Connecticut

Half Marathon+6

Sep 7

Faxon Law New Haven Road Race

Mon, September 7, 2026

New Haven, CT

View Race

Half marathon

Sep 12

2026 Gulf Beach Half Marathon

Sat, September 12, 2026

Milford, CT

View Race

Half Marathon+1

Sep 13

Surftown Half Marathon, Relay & 5k

Sun, September 13, 2026

Hartford, CT

View Race

Half Marathon

Sep 26

Hogsback Half Marathon

Sat, September 26, 2026

Colebrook, CT

View Race

Half Marathon

Sep 27

Greenwich Half Marathon

Sun, September 27, 2026

Old Greenwich, CT

View Race

5K Trail Race+2

Oct 4

Norfolk Land Trust Trail Race Series/Haystack Mountain Challenge

Sun, October 4, 2026

Norfolk, CT

View Race

Half Marathon+4

Oct 4

Garavel SoNo Half Marathon | 5K

Sun, October 4, 2026

Norwalk, CT

View Race

Eversource Hartford Marathon+2

Oct 10

Eversource Hartford Marathon, Half Marathon, Relay & Charity 5K

Sat, October 10, 2026

Hartford, CT

View Race

Half Marathon+2

Oct 11

Mohawk Mountain Race Marathon, Half Marathon, 10k & 5k

Sun, October 11, 2026

Cornwall, CT

View Race

Individual - Marathon+3

Oct 17

Tackle the Trail (TM)

Sat, October 17, 2026

Northeast, CT

View Race

Ridgefield Road Fest Half-Marathon+5

Oct 18

The Ridgefield Road Fest 50th ANNIVERSARY: 1/2 Marathon, 7-Miler, & Iris Fund 5K

Sun, October 18, 2026

Ridgefield, CT

View Race

Half Marathon

Oct 18

Pamby Ridgefield Half Marathon & 7M

Sun, October 18, 2026

Ridgefield, CT

View Race

The Reservoir Run Races Half Marathon+2

Oct 25

The Reservoir Run Half Marathon, 5K, Kids Fun Runs & Family Stroll

Sun, October 25, 2026

WESTON, CT

View Race

Half Marathon+2

Nov 14

Roxbury Fall Classic

Sat, November 14, 2026

Roxbury, CT

View Race

Ultra+1

Nov 14

Roxbury 50k, Marathon & Half Marathon

Sat, November 14, 2026

Roxbury, CT

View Race

Hillacious Half Marathon+2

Nov 14

Hillacious Half Marathon

Sat, November 14, 2026

Litchfield, CT

View Race

Half Marathon

Nov 15

Tarrywile 30k & Half Marathon

Sun, November 15, 2026

Danbury, CT

View Race

Storybrook Half Marathon

Nov 21

Storybook Half Marathon

Sat, November 21, 2026

Stratford, CT

View Race

Half Marathon+3

Apr 11

Ion Bank Cheshire Road Races

Sun, April 11, 2027

Cheshire, CT

View Race

Stamford Run Club 5k/10k/Half Marathon

Apr 18

Stamford Run Club 5k/10k/Half Marathon 2026

Sun, April 18, 2027

Stamford, CT

View Race