Running
5K Run
5 km

Running
5K Run
5 km
Join us for the Boston Costume Dash, a fun and festive running event where participants are encouraged to dress up in their favorite costumes. This unique race celebrates creativity and fitness with prizes for the best costumes.
Refreshments will be available at the start and finish lines.
Pace groups will be available for participants looking to achieve specific time goals. Experienced pacers will guide runners at the event.
Monthly averages based on historical data (2000–present).
Last updated: Jun 5, 2026, 07:53:23 PM
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On your marks
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