3rd edition will be held 6-8 OCT 2023. Registration is scheduled for May 2023.


2021 LAKE BIWA 100

LAKE BIWA 100 is an authentic 100-mile race comparable to overseas 100 mile race in full-fledged mountains. The course runs through a technical and beautiful ridgeline of the 1,200m class mountains (e.g. Suzuka Mountains, Hira Mountains) in renowned mountainous areas in Kansai, which requires runners, not only running ability, but comprehensive ability to run through the mountains and risk management skill.

Runners can enjoy the mountains surrounding Lake Biwa, which offers various and exciting challenges, and beautiful scenery along the course. After going through rough mountainous area in Suzuka Mountains, runners enters Shiga Prefecture on the Tokai Nature Trail where runners can enjoy running in a relatively flat section, and proceeds to the mountainous area again. From the trail overlooking Lake Biwa, the runners proceed to famous Mt. Hiei Enryakuji Temple in Kyoto, head north while enjoying traditional buildings of Japan, and enter the rugged mountain range. After conquering this mountain area, the runner reaches the last aid station set at a shrine called Modoroki Shrine, where people pray for their safely return. The runners pray for finishing the race safely, and then faces the last challenge, climbing the long steep climb of the Hira mountain range to the ridgeline. From there, Lake Biwa, the largest lake in Japan, and the Suzuka Mountains located across the lake can be seen. Then, the runner go down a steep descent of 1000 meters to Lake Biwa, at once, runs along the lake shore, and finishes at a beach of Lake Biwa. Many runners enjoy Goal & Dive, where the runner dive into the lake celebrating their achievement. The Cut-off time is set for a relatively long time, but the course is challenging. Since completing this course itself is a big challenge, this race may be a first step for local runners aiming to enter oversea races. For runners from overseas, this is a unique opportunity where you can experience the beautiful nature of Japan, steep and challenging mountains, and Japanese cultures.

Thank you for waiting.
Photos by Shintaro Mitsui have been uploaded.
The album link is listed on the Gallery page.There are so many brilliant photos. Enjoy!

Thank you for participating in the long hours and hardcore race.
I’m happy if your hard time has turned into enjoyable time in your memory whether you have finished it or not.

The result page and the gallery page on our web site has been updated. Some photos uploaded and the album links to each photographers album are listed.
Also the links to youtube movies that are created by runners participated in the race are shared.

The percentage of finishers and DNFs are put together on this spreadsheet.

The result is up on the UTMB world series site and ITRA site.
You have 6 points.
UTMB  https://utmb.world/races/29760.lakebiwa100.2022
ITRA   https://itra.run/Races/RaceResults/LAKE.BIWA.100.LAKE.BIWA.100/2022/77036

The cool LAKE BIWA 100 T shirts are on sale, but not many stocks left.
If you want the T shirts, please order here.

Enjoy the photos and the movies and recall the way you went forward step by step with big effort!

The email about supporter registration has been sent. If you have your own supporter to help you during the race, you need to register from the link in the email. Your supporter won’t be able to enter aid stations without registration.

If you want to change the place of bib distribution from the place you chose when you registered, please let us know by emailing to info@lakebiwa100.com. You can’t receive your bib and a drop bag if you go to different place without notification.

If you want to use accommodation・Bus・Car park and haven’t paid yet, your booking haven’t secured yet and will be cancelled without payment. Our travel agency will e-mail those who haven’t paid individually, so please check e-mail from Mr. Okita.okita@arc3.co.jp

Start list is here. Please check your info and if it’s different to the info on UTMB world series site and ITRA site, let us know by e-mailing info@lakebiwa100.com