Suffolk County Marathon

The Suffolk County Marathon takes place in Bay Shore on Long Island, New York, on October 17–18, 2026, offering a race weekend spread over two days. A 5K kicks things off on October 17, along with a 5K family trail run/walk and a 1K kids fun run; on October 18, starting at 7:30 a.m., the half marathon (13.1 miles / 21.1 km), the full marathon (26.2 miles / 42.2 km) and a 10K (6.2 miles) hit the road. Challenge options pair the 5K with the marathon, half marathon or 10K. Long-distance runners cross the Robert Moses Causeway and the Great South Bay Bridge, with wide views over the bay.

Beyond the athletic challenge, the event has a strong charitable mission: it supports local veterans and has raised significant funds over the years for services dedicated to them. Open to runners of all abilities, it is known for its friendly atmosphere and deep local roots, blending individual performance with a shared commitment to a common cause.