Running Races in Marlborough, Connecticut 2026 | Browse All Races

There are 2 running races in Marlborough, Connecticut in 2026. The next is the Masquerade 5K on October 25. Distances include 5K races.

Sun, Oct 25 · Marlborough, CT Marlborough

Road Marlborough Masquerade 5k

From $25 Open

Sun, May 30 · Marlborough, CT Marlborough

Road 5k5k

From $25 Closed

Running Races in Marlborough, Connecticut — 2026