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

O'Neill's 5K

Norwalk, Connecticut, United States

Jun 7, 2026 (Sun)

Running

4.2K 5K 1.6K

Hat City Dash

Danbury, Connecticut, United States

Jun 7, 2026 (Sun)

Running

5K

Celebrate! West Hartford FUNd RUNS

West Hartford, Connecticut, United States

Jun 7, 2026 (Sun)

Running

1K 5K

East Hampton Rotary .5K

East Hampton, Connecticut, United States

Jun 7, 2026 (Sun)

Running

5K Ultra

Heart of Eastford 5K

Eastford, Connecticut, United States

Jun 6, 2026 (Sat)

Running

5K

America’s 250th – Greenwich Community 5K & Fun Mile (1 Mile)

Greenwich, Connecticut, United States

Jun 6, 2026 (Sat)

Running

5K 1.6K

UConn Health Half Marathon

Simsbury, Connecticut, United States

Jun 6, 2026 (Sat)

Running

Half-Marathon 10K 5K

SongStrong 5K

Guilford, Connecticut, United States

Jun 6, 2026 (Sat)

Running

5K

Run the Race 5K

Danbury, Connecticut, United States

Jun 6, 2026 (Sat)

Running

5K

Athletic Brewing Company Fairfield Road Races

Fairfield, Connecticut, United States

Jun 6, 2026 (Sat) – Jun 7, 2026

Running

5K 26.1K 1.6K 0.8K +1

Hamden Fest Half Marathon & 5k

Hamden, Connecticut, United States

Jun 6, 2026 (Sat)

Running

Half-Marathon 5K

Worthington Early Summer 5k Running Series

Somers, Connecticut, United States

Jun 3, 2026 (Wed) – Jul 1, 2026

Running

5K +1