Cal Tri DC

The 2026 Cal Tri DC event takes place at Sweden Point Marina in Marbury, Maryland, just 30 miles south of Washington, DC, within General Smallwood State Park. Scheduled for June 7, 2026, it offers 18 race options across Olympic, Sprint, and Youth Sprint distances, including triathlon, run-bike-run, swim-bike, swim-run, and standalone swim and run events. Distances vary, with Olympic events featuring longer bike and run segments, and youth races offered free to participants aged 7-17.

The course features wetsuit-legal open water swims in average 82°F water, with average air temperatures ranging from 64°F to 86°F. The event is beginner-friendly and provides a scenic, versatile multisport experience near the nation’s capital. Visit the organization's website for the most recent information.