Lace up for an exhilarating challenge at the XCelsior Marathon, set against the picturesque backdrop of Rockland Lake State Park in Valley Cottage, NY, on June 14, 2026. Offering both a full marathon (26.2M) and a half marathon (13.1M), this USATF-certified event is renowned for its remarkably flat, paved course, making it one of the fastest in New York State. Runners will navigate a rhythmic, multi-lap route, with the marathon covering eight full laps plus an additional 2.72 miles, and the half marathon completing four laps with an extra 1.36 miles around the scenic lake, each lap spanning approximately 2.935 miles. This repetitive, yet visually engaging course, while lacking significant elevation changes, presents a unique mental test of endurance amidst stunning natural beauty.

As a distinguished component of the Tri-State Challenge series, the XCelsior Marathon draws athletes seeking both a competitive and recreational experience. Typical race day conditions in mid-June feature pleasant morning temperatures between 58-65°F, rising to highs around 78°F by afternoon, with a 16% chance of precipitation, moderate humidity, and a mix of clear and cloudy skies, ensuring a dynamic environment. Runners can expect one well-stocked aid station conveniently located at the finish line, providing essential hydration and nourishment to fuel their journey.

The start and finish lines are situated within Rockland Lake State Park's Parking Lot #5, with bib pick-up and the main aid station near the south entrance on Lake Road. Participants consistently praise the XCelsior Marathon for its "fast flat course with stunning scenery" and the overall enjoyment of a "scenic multiple-loop race around Rockland Lake." Whether you're chasing a personal best or soaking in the beautiful Hudson Valley surroundings, the XCelsior Marathon promises an engaging and unforgettable running experience.