Trail running Race Calendar in Connecticut, United States

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

Cornwall, Connecticut, United States

01 Oct, 2026 (Thu) – 04 Oct, 2026

Free

Trail running

Ultra

Iron Hike - Fall Olympus Mons Ultra Trail Marathon - powered by Skratch Labs ® - 152+ Miles | 72,590' Elevation | 84-Hour | Run, Hike or Walk

Cornwall, Connecticut, United States

01 Oct, 2026 (Thu) – 04 Oct, 2026

Free

Trail running

Ultra

Iron Hike - Fall Olympus Mons Ultra Trail Marathon Relay - powered by Skratch Labs ® - 152+ Miles | 72,590' Elevation | 84-Hour | Run, Hike or Walk

Cornwall, Connecticut, United States

01 Oct, 2026 (Thu) – 04 Oct, 2026

Free

Trail running

Ultra

IronHike Mohawk Mountain Fall 2026

Cornwall, Connecticut, United States

01 Oct, 2026 (Thu) – 04 Oct, 2026

$145.00 - $4,485.00

Trail running, Running

Ultra 46.7K 24.1K 46.3K +13

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

Cornwall, Connecticut, United States

02 Oct, 2026 (Fri) – 04 Oct, 2026

Free

Trail running

Ultra

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

Cornwall, Connecticut, United States

02 Oct, 2026 (Fri) – 04 Oct, 2026

Free

Trail running

Ultra

Iron Hike - Fall Answer the Bell Ultra Trail Marathon - Basic (Backyard Ultra Format) - 28+ Miles | 14,400'+ Elevation | 24-Hour | Run, Hike or Walk

Cornwall, Connecticut, United States

03 Oct, 2026 (Sat) – 04 Oct, 2026

Free

Trail running

Ultra

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

Cornwall, Connecticut, United States

03 Oct, 2026 (Sat) – 04 Oct, 2026

Free

Trail running

45.1K

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

Cornwall, Connecticut, United States

03 Oct, 2026 (Sat) – 04 Oct, 2026

Free

Trail running

45.1K

Norfolk Land Trust Trail Race Series/Haystack Mountain Challenge

Norfolk, Connecticut, United States

04 Oct, 2026 (Sun)

$25.00 - $35.00

Trail running

5K 10K Half-Marathon

Tackle the Trail (TM)

Northeast, Connecticut, United States

17 Oct, 2026 (Sat)

$75.00 - $250.00

Trail running

Marathon Half-Marathon 10K

Cheshire Community Ymca Harvest Trail Race and Y Cup Relay

Cheshire, Connecticut, United States

24 Oct, 2026 (Sat)

Free - $38.00

Trail running, Running

5K Pumpkin Dash