11 events in Cambridge, Massachusetts

From big races to Saturday morning group runs—find 5k events and connect with the local endurance sports community.

• Danehy Park parkrun [parkrun.us]
  • Subscribe to My Calendar (sign in required)

  • ---

  • Download single event

  Every Saturday at 9:00 AM

  Description

  parkrun is such a simple concept: turn up every Saturday and volunteer, walk, jog or run 5k.

  5k parkrun Run Walk

  Danehy Park, 166 New St, Cambridge, Massachusetts, 02140, United States
  OpenStreetMap Google Maps
• The Bionic5K [bionicproject.org] [Register at raceroster.com]
  • Subscribe to My Calendar (sign in required)

  • ---

  • Download single event

  Sun, May 17, 2026 at 9:00 AM

  Description

  This race is for EVERYONE.

  RUN or ROW

  5K or 1 Mile

  Sunday, May 17th @ 9AM

  Set up a fundraising page or click the donate button to support the Bionic Project's education program. See fundraising prizes below!

  *Any individual with a permanent physical disability is invited to participate free of charge by entering the promo code ADAPTIVE when registering for an event.

  5k Run Virtual

  41 Church Street, Cambridge, Massachusetts, 02138, United States
  OpenStreetMap Google Maps
• Cambridge 5K @ CambridgeSide [runsignup.com]
  • Subscribe to My Calendar (sign in required)

  • ---

  • Download single event

  Sun, May 31, 2026 at 10:00 AM

  Description

  ▼ Show more Show less

  The Cambridge 5K @ CambridgeSide is a flat and fast race through the heart of East Cambridge & Inman Square. The race starts & finishes at CambridgeSide and is immediately followed by a post-race...

  The Cambridge 5K @ CambridgeSide is a flat and fast race through the heart of East Cambridge & Inman Square. The race starts & finishes at CambridgeSide and is immediately followed by a post-race party at the new CanalSide Food + Drink hall. Registration includes a short-sleeve technical t-shirt, 5 complimentary parking voucher, and a post-race celebration. The race benefits the MSPCA & the Helen K. Holland Animal Care Trust Fund.

  After crossing the finish line at this year's Cambridge 5K @ CambridgeSide, DJ Smooth Bee will keep the party going at CanalSide Food + Drink, CambridgeSide's newly opened energetic food and drink experience featuring spectacular waterfront views, a collection of exciting eateries, and a centrally located bar. Redeem your 2 tear-off drink tickets at C-Side Bar for the signature 5K beer: Zero Gravity – Green State Lager.

  3.1 Miles 5k Run

  100 CambridgeSide Place, Cambridge, Massachusetts, 02141, United States
  OpenStreetMap Google Maps
• Summer Classic 5K [runsignup.com]
  • Subscribe to My Calendar (sign in required)

  • ---

  • Download single event

  Sun, Jun 28, 2026 at 9:30 AM

  Description

  Starts and finishes in beautiful downtown Cambridge, Massachusetts

  Make it a summer stroll or an all-out sprint down Massachusetts Avenue. The course is fast and flat so you can get back to the finish line sooner!

  Registration fees:

  • $40 through 4/12

  • $42.50 from 4/13 through 5/17

  • $45 from 5/18 through 6/21

  • $50 from 6/22 through race day

  5k Run

  64 Sidney St, Cambridge, Massachusetts, 02139, United States
  OpenStreetMap Google Maps
• Fall Classic 5K [runsignup.com]
  • Subscribe to My Calendar (sign in required)

  • ---

  • Download single event

  Sun, Oct 04, 2026 at 9:30 AM

  Description

  Start and finish in beautiful downtown Cambridge, Massachusetts. Take an Autumn stroll or sprint down Mass Ave. The course is fast and flat so you can get back to the post-race party sooner!

  Registration Fees:

  Cambridge Classic races sell out. Sign up early for the best prices.

  $40 – until 7/19

  $42.50 – 7/20 to 8/23

  $45 – 8/24 to 9/27

  $50 – 9/28 to Race Weekend (if available)

  5k Run

  64 Sidney St, Cambridge, Massachusetts, 02139, United States
  OpenStreetMap Google Maps
• Cambridge Half Marathon + 5K [runsignup.com]
  • Subscribe to My Calendar (sign in required)

  • ---

  • Download single event

  Sat, Oct 31, 2026 at 10:00 AM

  Description

  ▼ Show more Show less

  The Cambridge 5K is the kickoff to race weekend! It's a 3.1-mile course that starts and finishes at CambridgeSide. It's a quick out and back along the Charles River that will have you in awe of the...

  The Cambridge 5K is the kickoff to race weekend! It's a 3.1-mile course that starts and finishes at CambridgeSide. It's a quick out and back along the Charles River that will have you in awe of the Boston skyline.

  The Cambridge Half Marathon is a 13.1-mile USATF certified course that starts and finishes at CambridgeSide. It is a fast and flat course along Memorial Drive featuring views of the Charles River, MIT, John W. Weeks Footbridge, Harvard University Stadium, and more.

  5k 13.1 Miles Half Marathon Run

  100 CambridgeSide Place, Cambridge, Massachusetts, 02141, United States
  OpenStreetMap Google Maps
• Winter Classic 5K [runsignup.com]
  • Subscribe to My Calendar (sign in required)

  • ---

  • Download single event

  Sun, Dec 06, 2026 at 9:30 AM

  Description

  ▼ Show more Show less

  Join us for a chilly run of the Winter Classic 5K!

  Start and finish in beautiful downtown Cambridge, Massachusetts.

  Make it a winter stroll or an all-out sprint down Mass Ave. The course is fast and...

  Join us for a chilly run of the Winter Classic 5K!

  Start and finish in beautiful downtown Cambridge, Massachusetts.

  Make it a winter stroll or an all-out sprint down Mass Ave. The course is fast and flat so you can get back to the finish line sooner!

  Festive attire is encouraged but not mandatory.

  REGISTRATION FEES:

  • $40 until 10/11

  • $42.50 from 10/12 through 11/1

  • $45 from 11/2 through 11/29

  • $50 from 11/30 through Race Day (if available)

  5k Run

  64 Sidney St, Cambridge, Massachusetts, 02139, United States
  OpenStreetMap Google Maps
• Champagne Demo Race [runsignup.com]
  • Subscribe to My Calendar (sign in required)

  • ---

  • Download single event

  Mon, Jan 31, 2028 at 7:45 PM

  Description

  This is a demo page.

  5k

  79 N Harvard Street, Cambridge, Massachusetts, 02114, United States
  OpenStreetMap Google Maps

Local Clubs & Organizations