Which Connecticut cities have the most 5K races?
New Haven (5), West Hartford (4), Stratford (4), Fairfield (4) lead the state for 5K races. Those give you the most dates to choose from if your schedule is tight.
Connecticut · 5K
2026-2027 5K Races in Connecticut
Every upcoming 5K in Connecticut, all 112 of them, sorted by date. Dates, entry fees, finish-time stats from past results, and start-line maps.
112 upcoming 5K races · 66 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.
Connecticut 5K Races by City
5K Races in Connecticut by Month
The Next 5K Runs in Connecticut
112 total Sat, Sep 19, 2026Fleet Feet Hartford Fall 2026 Training Programs West Hartford, CTFrom $100Details Sat, Sep 19, 2026Fleet Feet Hartford Fall 5k & 10k West Hartford, CTRegistration closedFrom $100View race Sun, Oct 25, 2026Reservoir Run Half Marathon, 5K, Kids Fun Runs & Family Stroll WESTON, CTFrom $45Details Sun, Oct 25, 2026HKYFS Pumpkin Run 5K, 2M & Kids Run Higganum, CTFrom $35Details Sun, Oct 25, 2026King Cares Annual 5K Stamford, CTRegistration closedFrom $30Details Sun, Oct 25, 2026Markham Aviation Run The Runway 5K & Kids Fun Run Meriden, CTFrom $40Details Sun, Oct 25, 2026Abner Oakes III Veterans Run 5K & 10K Hamden, CTRegistration closedFrom $40Details Sun, Oct 25, 2026Donny's Dash Simsbury, CTRegistration closedPricing TBADetails Sun, Oct 25, 2026Connecticut Law Enforcement Officers Memorial Run Middletown, CTFrom $40Details Sun, Oct 25, 2026Masquerade 5K Marlborough, CTFrom $35Details Sun, Oct 25, 20265K for Ballet! East Hampton, CTRegistration closedFrom $25Details Sun, Oct 25, 2026Family Fun Halloween 5k Wilton, CTFrom $27Details
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 Oct 25, 2026.
Common Questions About Running a 5K in Connecticut
When are most 5K races held in Connecticut?
November is the busiest month for 5K races in Connecticut, with 46 of the 112, followed by October with 23. If you are flexible on the date, that is the quickest way to narrow things down.
Are Connecticut 5K races beginner-friendly?
Yes, for the most part. Across the 64 5K races in Connecticut with published results, the typical median finish is around 31:27, 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 5K races in Connecticut?
Yes, 2 races around Connecticut get you off the pavement: 2 are trail races.