Series Details


series results

directions & Course map


The 18th Annual Marathon Sports "Lets Run, Have Some Fun & Be Fit" Series is a 5Km race summer series that takes place on Thursday nights around the Charles River.

2018 dates and Registration coming soon!

new in 2017: B-Tag Chip Timing

May 18, 2017

June 29, 2017

July 27, 2017

August 31, 2017

September 14, 2017

All Races Start at American Legion Marsh Post #442, 5 Greenough Blvd, Cambridge, MA

B.A. Event Promotions,

133 Walnut Street #3, Somerville, MA 02145

For regular updates from the Race Director