Biwako Marathon

Elevate your running journey at the Biwako Marathon, returning to the historic shores of Shiga Prefecture on Sunday, March 8, 2026. This isn't just a race; it is a cinematic passage along the perimeter of Lake Biwa, Japan’s largest and most storied freshwater lake. Known for its pristine air and mirror-like waters, the course offers a flat, high-speed trajectory that draws both elite athletes chasing personal records and dedicated enthusiasts seeking the most scenic miles in East Asia.

The Biwako Marathon is celebrated for its versatile format, offering the classic 42.195 km Full Marathon alongside a dynamic Pair Relay option. The relay fosters a unique spirit of camaraderie, allowing two runners to share the distance and the glory of the finish line. As you navigate the lakeside paths, the legendary "Biwako Hospitality" comes to life. From the tireless local volunteers at every water station to the thunderous cheers of the crowds in Otsu and Kusatsu, the atmosphere is charged with an infectious, uplifting energy that carries you through every kilometer.

The route is a curated tour of Shiga’s natural and architectural heritage. Runners are treated to sweeping views of the Hira Mountains reflecting off the lake, the modern elegance of the Biwako Bridge, and the tranquil beauty of the lakeside parks. With the soft spring breeze providing the ideal climate for long-distance running, the Biwako Marathon stands as one of Japan’s most inspiring athletic stages. Secure your entry in this prestigious event and discover why Lake Biwa is the heart of Japan’s running culture.