Marshalton Triathlon

Be a part of one of the longest-running triathlons in the country as you pedal, paddle, and pace through a scenic and historic 10-mile route in beautiful Chester County, PA. First run in 1973, community members, families and teams from near and far gather every year on the first Sunday of October at the Marshalton Inn and Four Dogs Tavern to take on the rolling hills of Chester County, meander the unpredictable current of the Brandywine River, and navigate the back trails of the scenic countryside.