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Half marathons in Connecticut (2026-27)

2 upcoming half marathons in Connecticut in the next 12 months. The next is HSS Greenwich Half Marathon on Sunday October 18 in Old Greenwich, from $90.

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• Sun18Oct

  HSS Greenwich Half Marathon

  Sun Oct 18 · 7:30 AM · Old Greenwich · Connecticut

  Half marathon

  from $90
• Sun3Oct

  Garavel SoNo Half Marathon | 5K

  Sun Oct 3 · 8:30 AM · Norwalk · Connecticut

  1 mile5KHalf marathon

  from $25Reg. closed