Connecticut Running Calendar 2025-2026

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Explore the best running races in Connecticut for 2025-2026! Our updated list features 153 exciting races across the region. Find your next race in Connecticut below and join the running community at these great events!

Half Marathons Marathons Trail Runs Triathlons
October 2026
Oct
3-4
Sa - Su

Iron Hike - Kuwohi Trail Marathon Plus Relay

Trail Run 28 mi
Oct
3-4
Sa - Su

Forbidden Forest 30 Hour Ultra Run

Backyard Ultra 26 mi 50 km ... 100 km 100 mi
Oct
4
Sunday

YWCA Greenwich Walk the Walk & 5K

5 km
Oct
4
Sunday

Fishbein YMCA Community Road Race

5 km
Oct
4
Sunday

SoNo Half Marathon

5 km Half Marathon
Oct
11
Sunday

Mohawk Mountain Race

Trail Run 5 km 10 km Half Marathon Marathon
Oct
17
Saturday

Sound Steps for Mental Health Recovery 5K Wellness Run/Walk

5 km
November 2026
Nov
21
Saturday

Storybook Half Marathon

Trail Run 13 mi
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