5K races in Connecticut, United States — 2026 running calendar

Sep

19

Sickle Cell Disease Association of America, CT/ Michelle's House Walk. Run. Bike.

New Haven, Connecticut, United States

Running Walking Cycling

5K 1.6K 24.1K

Sep

17

Worthington Fall 5k Trail Running/ Walking Series

Somers, Connecticut, United States

Running

5K

Sep

15

Avon XC Home Meet

Avon, Connecticut, United States

Running

5K

Sep

14

14th Annual Miles for a Mission 5K Run/Walk – In Person AND Virtual – benefiting INTEMPO

Stamford, Connecticut, United States

Running

5K

Sep

13

Sounds by the Seaport 5k Walk/Run

Waterford, Connecticut, United States

Running

5K

Sep

13

Half Way TO ST. Pats Day 5K

Stratford, Connecticut, United States

Running

5K Half Way to St Pats free kids run (10 & under)

Sep

13

PTSMC Stride to Provide 5K Run/Walk

Wallingford, Connecticut, United States

Running

5K

Sep

13

Montville Race Day 5K , 10K , and Color Run

Oakdale, Connecticut, United States

Running

5K 10K

Sep

12

Groton City Brew Run

Groton, Connecticut, United States

Running

5K 1.5K

Sep

12

Greenleaf 5K River Run for the Fund

New London, Connecticut, United States

Running

5K

Sep

12

4 Town 5k

Somers, Connecticut, United States

Running

5K

Sep

12

Run 4 Hunger and Health

Newtown, Connecticut, United States

Running

5K 1.6K