Dates and times are subject to change by organizers. Please visit the organizers’ website for the latest information.

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  • Shifter’s 5K to benefit Dana Farber

    Waverley Oaks Athletic Club 425 Waverley Oaks Road, Suite 200, Waltham, MA, United States

    Register now for the Shifter’s 5K to benefit Dana Farber Marathon Challenge! This fun 5k for all levels will take place on Saturday, April 4th, and will start and end at Waverley Oaks Athletic Club! A post-race after party featuring food, beer, and live entertainment by Brian Burrill will kickoff at Mighty Squirrel Brewery immediately […]

    $40
  • Waltham Education and Beyond Foundation 5k road race

    Moody Street Bridge 211 Moody Street, Waltham, MA, United States

    The Strides for Education 5K & Kids Fun Run is an annual event that brings the Waltham community together for a fun, healthy, family-oriented activity in the heart of Waltham […]

    $34.09
  • Flight 5K at Mighty Squirrel Brewing Co!

    Mighty Squirrel—Waltham 411 Waverley Oaks Road, Waltham, MA, United States

    We are fired up to officially announce the Flight 5K at Mighty Squirrel Brewing Co! Incredible location. Bigger vision. Pre and post race festivities at Mighty Squirrel's outdoor beer garden […]

    $50
  • Boston Bone and Joint Institute 5K

    Boston Bone & Joint Institute 71 Border Road, Waltham, MA, United States

    An exciting day of fitness and community spirit at the Boston Bone & Joint Institute's inaugural 5k run and walk. To benefit the BBJI Research Foundation. 71 Border Road, Waltham. […]

    Free
  • Waltham YMCA Dash N Splash 5K

    Waltham YMCA 725 Lexington St, Waltham, MA, United States

    Join the Waltham YMCA for a family-friendly 5K race! This year’s race will feature: After you dash, cool off with a splash in our outdoor pool! No membership required! Fun family activities 21+ beer garden Multiple award categories Runners, walkers, and strollers welcome Kids under 12 run for free* (*Please note that they won’t receive […]

  • 2026 REACH Fall Festival and 5K

    Waltham Common 610 Main St, Waltham, MA, United States

    REACH's annual Fall Festival is returning to the Waltham Common! As always, the festival will be free and open to all, with highlights including community activities, live music, delicious food, local vendors and more. This year's festival will also see the return of our "Reach Beyond the Finish Line" 5K race. Runners, walkers and anyone […]

    Free
  • Western Greenway 5K Trail Run/Walk and Kids’ Monster Dash

    Metropolitan State Hospital 475 Trapelo Road, Waltham, MA, United States

    Celebrate Halloween with a spooktacular day on the trails! The Waltham Land Trust invites you to celebrate Halloween in the best way possible — moving through nature, in costume (if […]