| Shimadzu All Japan Indoor Tennis Championships |
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| Founded | 1964 |
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| Location | Kyoto, Japan |
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| Venue | Hannaryz Arena (1997–2013)
Shimadzu Arena Kyoto (since 2014) |
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| Surface | Hard / Indoor |
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| Website | Website |
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The Shimadzu All Japan Indoor Tennis Championships (島津全日本室内テニス選手権大会, Shimazu Zen Nihon Shitsunai Tenisu Senshuken Taikai) is a professional tennis tournament played on indoor carpet courts, founded as the All Japan Indoors in 1964. It is currently part of the International Tennis Federation (ITF) ITF Women's Tour and it is held annually in Kyoto, Japan. From 1997 to 2018, it was part of the Association of Tennis Professionals (ATP) Challenger Tour.