Seventh Annual Charles River One Mile Swim

Event Date

Sat, Jun 6, 2015


Boston, MA

About This Activity

The Seventh Annual Charles River One Mile Swim will take place on June 6, 2015.  The rain date is July 19, 2015.  The swim is sanctioned by United States Masters Swimming, sanction number 025-W002.  The swim is sponsored by the Charles River Swimming Club, an organization founded in 2005 and dedicated to organizing competitive swimming events in the Charles River and facilitating the return of public river swimming.  This is the organization's main yearly event.  The race is a one mile, single loop course betwen the Harvard and Longfellow bridges in the Charles River.   Please take note that only pre-registered swimmers are allowed to compete.

The water temperature on race day has historically been 70 degrees or above.  Wet suits are allowed, unless the water temperature exceeds 78 degrees (per USMS rules).  Please take particular caution that this swim is not for novices; it is for experienced open-water swimmers only. At a minimum you should be able to swim one mile comfortably in under 40 minutes.  Additionally, USMS membership is required. Day-long membership is $10 and can be purchased as part of the online registration. The race is dependent on weather conditions and may be canceled under adverse conditions. Swimmers may encounter random jetsam and flotsam in the river.

Event details and schedule


  • Fluorescent swim caps will be provided and must be worn for safety reasons
  • Mandatory Athlete check-in from 7:00am to 7:45am,
  • All participants must bring ID and their USMS membership card if already a 2015 member


  • The race is scheduled for Saturday, June 6, 2015
  • Pre-race announcement at 7:45am
  • Race start at 8am
  • Race end at 9am
  • Bag-check available
  • The rain date will be Sunday, July 19


  • In the even of heavy or prolonged rainfall, the swim might be canceled. In that case, we will send out an e-mail the day before the race and have a notice on our website.


  • Awards, goodies, race packet and post-race refreshments
  • Bragging rights for having swam a mile in the Charles River


We suggest you arrive by public transportation, biking or walking. The closest MBTA station is the Charles/MGH station on the Red Line or Arlington or Copley Station on the Green Line. Volunteers will greet persons crossing the Arthur Fiedler footbridge or the Charles/MGH footbridge. Pay parking is available at the Boston Common garage. Rates and directions are available here.

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