Maryland
Maryland Triathlon Calendar 2025-2026
Monthly updates for Maryland
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Explore the best triathlons in Maryland for 2025-2026! Our updated list features 11 exciting races across the region. Find your next race in Maryland below and join the running community at these great events!
January 2026
Race the Winter Warm Up Adventure Race on January 10, 2026 at Gambrill State Park High Knob in Frederick, MD. This USARA sanctioned 5 Hour Adventure Race blends mountain biking and trekking with solo and team entries plus a trek only option.
February 2026
Test your speed at the Harford Multisport Club Indoor Triathlon on Feb 28 at the Abingdon YMCA, an indoor fixed time event where you swim 10 minutes, bike 30 minutes and run 20 minutes to rack up the greatest overall distance. Open to ages 10 to 100..
April 2026
Columbia Duathlon in Columbia, Maryland features a sprint race and two youth events on fast looped courses with one challenging hill. Grab your spot early for this popular multisport race that includes a race shirt and finisher medal.
Take on the General Smallwood Triathlon in Marbury MD with Olympic, Sprint and relay options and a scenic swim in Mattawoman Bay. Rolling low traffic roads, time trial swim starts and finisher swag make it a memorable race day.
May 2026
Join the Rock Hall Triathlon in Rock Hall Maryland on May 30 and 31 2026, featuring Olympic and Sprint races and serving as the USA Triathlon Maryland State Championships. Bay swims, scenic rural bike routes and flat neighborhood runs await, plus med..
June 2026
Tackle IRONMAN 70.3 Eagleman on June 14, 2026 in Cambridge Maryland, a scenic half distance triathlon on the Eastern Shore. Enjoy a 1.2 mile swim, 56 mile bike through Blackwater National Wildlife Refuge and a flat 13.1 mile run to Gerry Boyle Park.
Join the 2026 Cal Tri DC on June 14, 2026 at Sweden Point Marina for a scenic triathlon with sprint, Olympic and youth race options for all ages and abilities. Swim, bike and run along the Chesapeake shoreline for a fun summer challenge.
July 2026
Challenge yourself at the Diamond in the Rough Triathlon in Perryville, MD on July 11, 2026 with an open water swim in the Chesapeake Bay and scenic bike and run courses along River Road. Olympic and Sprint distances plus relays make this a great rac..
August 2026
Take on the North East Triathlon in scenic North East Maryland with a Chesapeake Bay swim, rolling bike through Elk Neck State Forest and a coastal run. Olympic, sprint, aquabike and relay options welcome athletes ages 12 and up.
September 2026
IRONMAN Maryland in Cambridge is a full distance 140.6 triathlon with a river swim, scenic bike through Blackwater National Wildlife Refuge, and a flat downtown run. Fast course and World Championship qualification make it a top pick.
October 2026
Waterman's Triathlon Festival returns October 3 and 4, 2026 in Rock Hall, Maryland with half, Olympic and sprint races plus aquabike and relay options across two action packed days. Open to age group athletes, with medals, a tech shirt and a post rac..