Connecticut · 10K
10Ks in Connecticut
Connecticut currently has 12 upcoming 10Ks with a confirmed date listed in RaceRove. Simsbury, Bloomfield, Cornwall and Danbury have the largest concentration of events.
October (5), November (4) and September (2) are the busiest months on the calendar right now. Another 13 annual 10Ks are waiting for next year's date to be announced.
- Upcoming, date confirmed
- 12
- Active listings
- 25
- Cities with races
- 23
More ways to browse Connecticut
Upcoming 10Ks in Connecticut
All 12 with a confirmed date, soonest first.
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Eversource Hartford Marathon, Half Marathon, Relay & Charity 5KHartford, CTMarathonHalf Marathon10K5K
Dates come from each race's own listing. Always confirm on the organiser's site before you book travel.
Largest 10K events in Connecticut
By estimated field size across all distances at the event.
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Old Wethersfield 5K & 10KWethersfield, CT Usually held in August · date not confirmed5K10K ~1,200 runners
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UConn Health Half Marathon, 10K & 5K (on Iron Horse)Simsbury, CT Usually held in June · date not confirmedHalf Marathon10K5K ~1,200 runners
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Minute Man RaceWestport, CT Usually held in April · date not confirmed10K5K Run/WalkKids Fun Run ~1,000 runners
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Mystic Half Marathon & 10KMystic, CT Usually held in May · date not confirmedHalf Marathon10KKids Run ~1,000 runners
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Middletown 10K & 5K Run/WalkMiddletown, CT Usually held in April · date not confirmed10K5K ~800 runners
When 10Ks happen in Connecticut
- April
- 1 upcoming race
- September
- 2 upcoming races
- October
- 5 upcoming races
- November
- 4 upcoming races
Connecticut cities with the most 10Ks
- Simsbury
- 2 upcoming races
- Bloomfield
- 1 upcoming race
- Cornwall
- 1 upcoming race
- Danbury
- 1 upcoming race
- Fairfield
- 1 upcoming race
- Hartford
- 1 upcoming race
- Norfolk
- 1 upcoming race
- Northeast
- 1 upcoming race
Annual events awaiting their next date
These 10Ks are held every year, but the next date isn't in the listing yet. The month shown is when each is usually held.
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Old Wethersfield 5K & 10KWethersfield, CT Usually held in August · date not confirmed5K10K ~1,200 runners
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UConn Health Half Marathon, 10K & 5K (on Iron Horse)Simsbury, CT Usually held in June · date not confirmedHalf Marathon10K5K ~1,200 runners
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Minute Man RaceWestport, CT Usually held in April · date not confirmed10K5K Run/WalkKids Fun Run ~1,000 runners
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Mystic Half Marathon & 10KMystic, CT Usually held in May · date not confirmedHalf Marathon10KKids Run ~1,000 runners
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Middletown 10K & 5K Run/WalkMiddletown, CT Usually held in April · date not confirmed10K5K ~800 runners
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Montville Race Day 5K , 10K , and Color RunOakdale, CT Usually held in September · next date not announced5K10K
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Newtown Community Running EventNewtown, CT Usually held in August · next date not announced50 Yards5K10K
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Suffield Parks & Recreation Road RaceSuffield, CT Usually held in September · next date not announced10K5K400m
10Ks in nearby states
Guides from the RaceRove blog
- 7 min read How to Find a 5K, 10K, Half Marathon or Marathon Near You A practical way to find running races near you: pick a distance, decide how far you'll travel, read the listing properly and confirm the details before you register.
- 8 min read How to Choose the Best Half Marathon for a PR, Racecation or 50-State Challenge The best half marathon depends on what you want from it. How to choose a course for a personal record, a race worth travelling for, or an efficient stop on a 50-state challenge.
- Blog All guides Planning advice for finding, choosing and travelling to races.
10Ks in Connecticut: common questions
- How many 10Ks are there in Connecticut?
- RaceRove currently lists 12 upcoming 10Ks in Connecticut with a confirmed date, plus 13 annual events whose next date hasn't been announced yet.
- How long is a 10K?
- A 10K is 6.2 miles (10 kilometres).
- Which Connecticut cities have the most 10Ks?
- By upcoming events listed in RaceRove: Simsbury (2), Bloomfield (1), Cornwall (1), Danbury (1) and Fairfield (1).
- When is 10K season in Connecticut?
- Of the upcoming 10Ks listed, the busiest months are October (5), November (4) and September (2).
- What is the biggest 10K in Connecticut?
- By estimated field size, the largest event with a 10K listed in Connecticut is the Old Wethersfield 5K & 10K, with about 1,200 runners across all of its distances.
Search every 10K in Connecticut
Filter by month, course profile and field size, save races to a shortlist and compare them side by side in the interactive search.