Race Calendar in Connecticut, United States

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

Greenwich, Connecticut, United States

Jun 6, 2026 (Sat)

Running

5K 1.6K

Roxbury Road Race Series #14

Roxbury, Connecticut, United States

Jun 6, 2026 (Sat)

Running

15.9K

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

Kelley's Pace National Donut Day Relay

Mystic, Connecticut, United States

Jun 6, 2026 (Sat)

Running

Relay

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

Cornwall, Connecticut, United States

Jun 6, 2026 (Sat) – Jun 7, 2026

Running

24.1K

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

Cornwall, Connecticut, United States

Jun 6, 2026 (Sat) – Jun 7, 2026

Trail running

45.1K

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

Cornwall, Connecticut, United States

Jun 6, 2026 (Sat) – Jun 7, 2026

Trail running

45.1K

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

Cornwall, Connecticut, United States

Jun 5, 2026 (Fri) – Jun 7, 2026

Trail running

Ultra

11th Annual Flanders Field & Forest 5K Trail Run/Walk

Woodbury, Connecticut, United States

Jun 5, 2026 (Fri)

Trail running

5K

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

Cornwall, Connecticut, United States

Jun 5, 2026 (Fri) – Jun 7, 2026

Trail running

Ultra

Iron Hike - Spring Everest / 29029 Everesting Ultra Trail Marathon - 61+ Miles | 29,029'+ Elevation | 72-Hour | Run, Hike or Walk

Cornwall, Connecticut, United States

Jun 4, 2026 (Thu) – Jun 7, 2026

Trail running

Ultra