Road Running atmosphere in Otsu, Japan, representing Lake Biwa Marathon 2027
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Lake Biwa Marathon 2027

Flat lakeside kilometres beside Biwa.

Otsu, Japan Sunday 14 March 2027

Official registration

Why you might love it

  • 01

    A major Japanese marathon with lake views and a reputation for flat, honest racing.

Who this suits

International runners via package or furusato pathways; PB hunters on a flat course.

Getting ready

Preparation

Japan’s lakeside marathon around Lake Biwa in Otsu, Shiga — a flat, fast course with about 8,000 runners. General lottery closed; furusato-tax donor places and race+hotel packages remain open booking paths into late October 2026.

In your Race Year

March — Lake Biwa Marathon 2027

A challenging March chapter — build the months before it around getting there ready.

See my year

Where this could take you

One finish line starts the next.

Trail Running editorial imagery representing DEEP JAPAN ULTRA 30K 2027

Or try something different

DEEP JAPAN ULTRA 30K 2027

Same running legs, but on trails instead of roads — slower, wilder, more scenery.

Just an idea, not a plan — your year is yours to shape.

Keep exploring

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