10K races in Connecticut, United States — 2026 running calendar

UConn Health Half Marathon

Simsbury, Connecticut, United States

06 Jun, 2026 (Sat)

Running

Half-Marathon 10K 5K

6th Annual A. W. Stanley Park 5K

New Britain, Connecticut, United States

13 Jun, 2026 (Sat)

$30.00

Running, Walking

5K 1.6K 10K +1

Fleet Feet Hartford Summer 2026 5k & 10k Training Programs

West Hartford, Connecticut, United States

13 Jun, 2026 (Sat) – 23 Aug, 2026

$100.00 - $160.00

Running

5K 10K

Roxbury Road Race Series #15

Roxbury, Connecticut, United States

13 Jun, 2026 (Sat)

$10.00

Running

10K

52nd Annual Rooster Run

Newtown, Connecticut, United States

13 Jun, 2026 (Sat)

$35.00

Running

5K 10K

L+M Summer Stride 5K & 10K

New London, Connecticut, United States

14 Jun, 2026 (Sun)

Running

5K 10K

Rose Arts Road Race

Norwich, Connecticut, United States

27 Jun, 2026 (Sat)

$25.00 - $30.00

Running

5K 10K

Roxbury Road Race Series #19

Roxbury, Connecticut, United States

18 Jul, 2026 (Sat)

$10.00

Running

10K

Roxbury Road Race Series #21

Roxbury, Connecticut, United States

08 Aug, 2026 (Sat)

$10.00

Running

10.3K

Old Wethersfield 5K & 10K

Wethersfield, Connecticut, United States

23 Aug, 2026 (Sun)

Running

10K 5K

Be Happy Road Race

Ellington, Connecticut, United States

30 Aug, 2026 (Sun)

$20.00 - $80.00

Running

1K 5K 10K 36.1K +2

Newtown Community Running Event

Newtown, Connecticut, United States

30 Aug, 2026 (Sun)

$40.00 - $80.00

Running

5K 10K Half-Marathon