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2 triathlon events in Charles County, Maryland

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

2 events
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Charles County

2 events in Charles County
  • Sat, Apr 25, 2026 at 8:00 AM

    Staged out of beautiful General Smallwood State Park, this triathlon has beautiful, rolling courses and low traffic roads. The swim takes place in the Mattawoman Bay, known across the Nation as a prime example of what a fully restored Chesapeake Bay tributary looks like! After a quick run to the transition area, athletes will race along the rolling, freshly paved, low traffic roads of Charles County. Once you’ve laced up your running shoes, you’ll head back to the road for another scenic, rolling course with aid stations every mile. The last mile of the course is amazing as you re-enter the park and cross over Mattowoman Bay just prior to the finish line and your fantastic post race BBQ. Don’t miss out on this early season classic just a short drive from NOVA!

    On the fence about registering? Check out our General Smallwood Triathlon Video and sign up today!

    For more details please go to: https://kineticmultisports.com/races/smallwood/

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    RunSwimTriathlon via RunSignup
  • Sun, Jun 14, 2026 at 8:00 AM

    2026 Cal Tri DC - 6.14.26. Combine a trip to the nation's capitol with a race venue just 30 miles south of Washington DC in Maryland's General Smallwood State Park.

    18 EVENT OPTIONS. 6 Olympic distance events (Triathlon, RunBikeRun, SwimBike, SwimRun, 1640 Yard Swim & 10K Run), 6 Sprint distance events (Triathlon, RunBikeRun, SwimBike, SwimRun, 400 yard Swim & 5K Run) and 6 Youth Sprint distance events (Triathlon, RunBikeRun, SwimBike, SwimRun, 400 yard Swim & 5K Run). Triathlon = swim + bike + run. Typically, the swim and run distances are standard but the bike distance varies from race to race. Check out the course maps for more detailed information.

    TO DO. Smithsonian National Museum of Natural History. National Museum of African American History and Culture. US Capitol.

    AIRPORT. Ronald Reagan Washington National (DCA)

    AIR TEMPERATURE (AVG). 64 F / 86 F

    WATER TEMPERATURE (AVG). 82 F. Wetsuit allowed with no results. Use the 20% CALTRI2025 discount code at blueseventy. Note: Fusion wetsuits not eligible for discount.

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