Running races in Connecticut in Mar 2027

8 races in date order

O'Shenanigans 5K
March 2027 · Southington, CT · 5K
Kicks off Hartford's St. Patrick's race series

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ShamRock & Roll 5K
Sun 7 Mar 2027 · New Haven, CT · 5K
New Haven's St. Patrick's week 5K, 1,500 strong

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O'Niantic 5K
March 2027 · Niantic, CT · 5K
St. Patrick's 5K through shoreline village Niantic

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Courthouse O'Putnam 5K
March 2027 · Putnam, CT · 5K

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O'Hartford 5K & 10K
March 2027 · Hartford, CT · 10K · 5K
Finale of Hartford's four-race St. Patrick's series

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Leprechaun Made Me Do It
Wed 17 Mar 2027 · Glastonbury, CT

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Savin Rock Marathon
March 2027 · West Haven, CT · Marathon · Half Marathon
Runs the historic Savin Rock shoreline in West Haven

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Northern Nipmuck Trail Race
March 2027 · Union, CT · 16 Mile

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Every race here is published by its organiser; RunCalendar checks the date and the entry window against the organiser's own page and rebuilds this calendar every night. A confirmed date shows its day; a provisional one shows only its month. Last updated 22 October 2026.