Biwako Marathon

Runs along the shore of Lake Biwa out of Otsu, with the water on one side and the mountains on the other. Flat, quiet and a very Japanese kind of race day.

PB courseFlatJPN
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Where it runs

Biwako Marathon course map: the route through Otsu, with the start and the finish marked.
Otsu Marathon course map — start, finish and route.

Interactive map

The trace follows the organizer's published course, simplified for the screen: the orange dot is the start, the dark dot the finish. Scroll to zoom, drag to pan.

About this race

Runs along the shore of Lake Biwa out of Otsu, with the water on one side and the mountains on the other. Flat, quiet and a very Japanese kind of race day.

Next edition
14 March 2027
Elevation gain
95 m
Profile
Flat
First run
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About these facts

Dates, course type, climbing and time limits are compiled from the organizer's publications and re-checked each season; elevation is an estimate of total climbing rather than a survey figure. Always confirm race-day details with the organizer before making plans.

Last reviewed 28 September 2026