Which Connecticut cities have the most races?
Roxbury (20), Stratford (5), Hamden (5), Mystic (4) have the most upcoming races in Connecticut. If you are willing to travel an hour or two, those give you the widest choice of dates and distances.
Connecticut · Race calendar
Running Races in Connecticut
Every upcoming running race in Connecticut, all 201 of them. 5Ks, 10Ks, half marathons and marathons with dates, pricing, finish-time stats from past results, and start-line maps.
201 upcoming races · 106 with finish-time stats
By the numbers
The Biggest and Longest-Running
The Connecticut races that stand out on the numbers: the biggest field, and the longest unbroken run of editions.
Races by City in Connecticut
Soonest Races in Connecticut
201 total Thu, Jul 16, 20265K Training Program for the Battle of Stonington Mystic, CTFrom $35Details Wed, Jul 29, 2026Worthington Late Summer 5k Running Series Somers, CTFreeRegister Fri, Jul 31, 2026The Trumbull Rotary Sunset 5k Run & Walk Trumbull, CTFrom $30Details Sat, Aug 1, 2026It's All Downhill From Here 5K Wilton, CTFrom $30Details Sat, Aug 1, 2026Roxbury Road Race Series #20 Roxbury, CTFrom $10Register Sun, Aug 2, 2026Boys & Girls Club of Milford Ice Cream Run (5K) Milford, CTFrom $35Details Sun, Aug 2, 2026Griswold I scream, you scream, there won't be any ice cream 1 miler Griswold, CTFrom $25Register Wed, Aug 5, 2026Stonington Cross Country 5K Pawcatuck, CTFreeDetails Sat, Aug 8, 2026The Perogie Dash Danbury, CTFrom $25Details Sat, Aug 8, 20262026 Natchaug 5K Color Run & Walk Mansfield Center, CTFrom $15Details Sat, Aug 8, 2026Roxbury Road Race Series #21 Roxbury, CTFrom $10Register Sat, Aug 8, 2026Follow Natural Fitness Women's Health 5K Bridgeport, CTFrom $30Details
How we calculate these stats: RunSesh calculates these figures from the most recent published results of past editions, sourced from RunSignup. We show aggregates only: field size, winning and median times, and the cutoff. We never publish individual finisher tables. Last updated Jul 27, 2026.
Common Questions About Racing in Connecticut
What race distances can I run in Connecticut?
Connecticut has 5K (143), 10K (12), Half Marathon (10), Marathon (2), Ultra (2). Pick a distance to narrow the list to races you would actually enter.
When is race season in Connecticut?
September is the busiest month for races in Connecticut, with 55 of the 201, followed by October with 55. If you are flexible on the date, that is the quickest way to narrow things down.
Are Connecticut races beginner-friendly?
Yes, for the most part. Across the 106 races in Connecticut with published results, the typical median finish is around 32:23, which means half of every one of those fields came in slower than that. Recreational runners and walk-runners are the bulk of these fields, not the exception.
Are there trail races in Connecticut?
Yes, 18 races around Connecticut get you off the pavement: 9 are trail races, and 9 mix road and trail. Surfaces are not always published, so it is worth checking a specific race before you register.