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Races near Boston in September 2027

4 races on the calendar for September. Listed by date, with prices and early-bird deadlines where the race publishes them.

Oct 2026Nov 2026Dec 2026Jan 2027Feb 2027Mar 2027Apr 2027May 2027Jun 2027Jul 2027Aug 2027Sep 2027

• Sun12Sep

  Half Marathon-by-the-Sea

  Sun Sep 12 · 9:00 AM · Manchester-by-the-Sea · North Shore & Merrimack Valley

  Half marathon

  from $79.99Goes up Mar 31
• Sat18Sep

  Spirit of '76 Patriot 5K RUN / Walk / Ruck

  Sat Sep 18 · 9:00 AM · Marblehead · North Shore & Merrimack Valley

  5K

  from $35Reg. closed
• Sat25Sep

  Colin's Joy Project 5K

  Sat Sep 25 · 8:15 AM · Boston · Boston & Cambridge

  5K

  from $30
• Sat25Sep

  Southern New Hampshire Health 5k Run/Walk

  Sat Sep 25 · 8:30 AM · Nashua · Southern New Hampshire

  5K

  from $30Reg. closed