Race Calendar in Connecticut, United States

Iron Hike - Spring Denali Ultra Trail Marathon - 43+ Miles | 20,825' Elevation | 48-Hour | Run, Hike or Walk

Cornwall, Connecticut, United States

05 Jun, 2026 (Fri) – 07 Jun, 2026

Free

Trail running

Ultra

Iron Hike - Spring Denali Ultra Trail Marathon Relay - 43+ Miles | 20,825' Elevation | 48-Hour | Run, Hike or Walk

Cornwall, Connecticut, United States

05 Jun, 2026 (Fri) – 07 Jun, 2026

Free

Trail running

Ultra

SongStrong 5K

Guilford, Connecticut, United States

06 Jun, 2026 (Sat)

$30.00

Running

5K

UConn Health Half Marathon

Simsbury, Connecticut, United States

06 Jun, 2026 (Sat)

Running

Half-Marathon 10K 5K

Iron Hike - Spring Double Kuwohi Trail Marathon Plus Relay - 28+ Miles | 13,685' Elevation | 24-Hour | Run, Hike or Walk

Cornwall, Connecticut, United States

06 Jun, 2026 (Sat) – 07 Jun, 2026

Free

Trail running

45.1K

Hamden Fest Half Marathon & 5k

Hamden, Connecticut, United States

06 Jun, 2026 (Sat)

$35.00 - $110.00

Running

Half-Marathon 5K

Iron Hike - Spring Kuwohi Trail Half Marathon Plus - 15 Miles | 7,140' Elevation | 12-Hour | Run, Hike or Walk

Cornwall, Connecticut, United States

06 Jun, 2026 (Sat) – 07 Jun, 2026

Free

Running

24.1K

Run the Race 5K

Danbury, Connecticut, United States

06 Jun, 2026 (Sat)

$35.00

Running

5K

Iron Hike - Spring Kuwohi Trail Half Marathon Plus Relay - 15 Miles | 7,140' Elevation | 12-Hour | Run, Hike or Walk

Cornwall, Connecticut, United States

06 Jun, 2026 (Sat) – 07 Jun, 2026

Free

Running

24.1K

Heart of Eastford 5K

Eastford, Connecticut, United States

06 Jun, 2026 (Sat)

$50.00

Running

5K

Roxbury Road Race Series #14

Roxbury, Connecticut, United States

06 Jun, 2026 (Sat)

$10.00

Running

15.9K

Athletic Brewing Company Fairfield Road Races

Fairfield, Connecticut, United States

06 Jun, 2026 (Sat) – 07 Jun, 2026

$12.00 - $105.00

Running

5K 26.1K 1.6K 0.8K +1