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LAKE BIWA 100
UltraJapanMie Prefecture

LAKE BIWA 100 2027

29.10 – 31.10.2027Komono-cho, Mie (Japan)Dates to be confirmed
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2 courses · 163–170 km101.3–105.6 mi · up to 10’500 m D+up to 34’449 ft D+

At a glance

LAKE BIWA 100 2027 is expected from Friday 29 to Sunday 31 October 2027 in Komono-cho, Mie (Mie Prefecture, Japan), date to be confirmed by the organiser. Two distances to choose from: 163 and 170 km.

Longest course: LAKE BIWA100, 170 km with 10’500 m D+ (62 m per km: very steep terrain). Terrain: 59% trail, 6% forest track and 25% road. Terrain data: © OpenStreetMap contributors.

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The Lake Biwa 100 course takes you on a journey through various ecosystems and historical sites in the Kansai region of Japan, skirting Lake Biwa the biggest lake in Japan for most of the course.
From the organiser

2 courses

  1. 163km101.3mi

    9’060 m D+29’724 ft D+

    avg 6%

    100
    ITRA 6

  2. 170km105.6mi

    10’500 m D+34’449 ft D+

    8’376 m D-27’480 ft D-

    avg 6%

    LAKE BIWA100
    UTMB Index 100M
    GPX

Course analysis

LAKE BIWA100170 km105.6 mi10’500 m D+34’449 ft D+

275effort kmⓘ170 km on the map · feels like 275 km105.6 mi on the map · feels like 275 km
D+
10’500 m34’449 ft
D−
8’376 m27’480 ft
Max alt.
1’208 m3’963 ft
Steepest
21%

Segments

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Elevation profile: LAKE BIWA100

77 m – 1’208 m253 ft – 3’963 ft

Race plan

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Where to stay

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