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Yuji Ishii (石井佑嗣) (2020ISHI01) has 9 nemeses in the country (Japan):

	WCA ID	Name
2010SUGA01: Sei Sugama (洲鎌星) View WCA profile Head to head with 2020ISHI01 See who I nemesize (2865)	2010SUGA01	Sei Sugama (洲鎌星)	View Sei Sugama (洲鎌星)'s WCA profile	Compare Sei Sugama (洲鎌星) with Yuji Ishii (石井佑嗣)
2013KATO01: Eva Kato (加藤映葉) View WCA profile Head to head with 2020ISHI01 See who I nemesize (2874)	2013KATO01	Eva Kato (加藤映葉)	View Eva Kato (加藤映葉)'s WCA profile	Compare Eva Kato (加藤映葉) with Yuji Ishii (石井佑嗣)
2016MANN01: Evan Akira Mann (マンエヴァン朗) View WCA profile Head to head with 2020ISHI01 See who I nemesize (2948)	2016MANN01	Evan Akira Mann (マンエヴァン朗)	View Evan Akira Mann (マンエヴァン朗)'s WCA profile	Compare Evan Akira Mann (マンエヴァン朗) with Yuji Ishii (石井佑嗣)
2017KUSA01: Kohdai Kusatani (草谷幸大) View WCA profile Head to head with 2020ISHI01 See who I nemesize (2701)	2017KUSA01	Kohdai Kusatani (草谷幸大)	View Kohdai Kusatani (草谷幸大)'s WCA profile	Compare Kohdai Kusatani (草谷幸大) with Yuji Ishii (石井佑嗣)
2019NOGA01: Ao Nogami (野上碧) View WCA profile Head to head with 2020ISHI01 See who I nemesize (2938)	2019NOGA01	Ao Nogami (野上碧)	View Ao Nogami (野上碧)'s WCA profile	Compare Ao Nogami (野上碧) with Yuji Ishii (石井佑嗣)
2019NOMU01: Yuki Nomura (野村優希) View WCA profile Head to head with 2020ISHI01 See who I nemesize (2849)	2019NOMU01	Yuki Nomura (野村優希)	View Yuki Nomura (野村優希)'s WCA profile	Compare Yuki Nomura (野村優希) with Yuji Ishii (石井佑嗣)
2022MIYA01: Hajime Miyazaki (宮崎朔) View WCA profile Head to head with 2020ISHI01 See who I nemesize (2817)	2022MIYA01	Hajime Miyazaki (宮崎朔)	View Hajime Miyazaki (宮崎朔)'s WCA profile	Compare Hajime Miyazaki (宮崎朔) with Yuji Ishii (石井佑嗣)
2023SAKA04: Kantaro Sakamoto (坂本貫太郎) View WCA profile Head to head with 2020ISHI01 See my nemeses (2) See who I nemesize (2711)	2023SAKA04	Kantaro Sakamoto (坂本貫太郎)	View Kantaro Sakamoto (坂本貫太郎)'s WCA profile	Compare Kantaro Sakamoto (坂本貫太郎) with Yuji Ishii (石井佑嗣)
2023TAKA02: Wataru Takamiya (髙宮径) View WCA profile Head to head with 2020ISHI01 See my nemeses (1) See who I nemesize (2367)	2023TAKA02	Wataru Takamiya (髙宮径)	View Wataru Takamiya (髙宮径)'s WCA profile	Compare Wataru Takamiya (髙宮径) with Yuji Ishii (石井佑嗣)