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Katsunori Ishiguro (石黒克典) (2014ISHI02) has 11 nemeses in the country (Japan):

	WCA ID	Name
2007NAKA03: Yu Nakajima (中島悠) View WCA profile Head to head with 2014ISHI02 See who I nemesize (2616)	2007NAKA03	Yu Nakajima (中島悠)	View Yu Nakajima (中島悠)'s WCA profile	Compare Yu Nakajima (中島悠) with Katsunori Ishiguro (石黒克典)
2007OMUR01: Shuhei Omura (大村周平) View WCA profile Head to head with 2014ISHI02 See who I nemesize (2377)	2007OMUR01	Shuhei Omura (大村周平)	View Shuhei Omura (大村周平)'s WCA profile	Compare Shuhei Omura (大村周平) with Katsunori Ishiguro (石黒克典)
2008TAKA01: Yuhei Takagi (高木佑平) View WCA profile Head to head with 2014ISHI02 See who I nemesize (2547)	2008TAKA01	Yuhei Takagi (高木佑平)	View Yuhei Takagi (高木佑平)'s WCA profile	Compare Yuhei Takagi (高木佑平) with Katsunori Ishiguro (石黒克典)
2008UENO01: Shuto Ueno (上野柊斗) View WCA profile Head to head with 2014ISHI02 See who I nemesize (2625)	2008UENO01	Shuto Ueno (上野柊斗)	View Shuto Ueno (上野柊斗)'s WCA profile	Compare Shuto Ueno (上野柊斗) with Katsunori Ishiguro (石黒克典)
2010SUGA01: Sei Sugama (洲鎌星) View WCA profile Head to head with 2014ISHI02 See who I nemesize (2591)	2010SUGA01	Sei Sugama (洲鎌星)	View Sei Sugama (洲鎌星)'s WCA profile	Compare Sei Sugama (洲鎌星) with Katsunori Ishiguro (石黒克典)
2011IRIF01: Asato Irifune (入船朝斗) View WCA profile Head to head with 2014ISHI02 See who I nemesize (2435)	2011IRIF01	Asato Irifune (入船朝斗)	View Asato Irifune (入船朝斗)'s WCA profile	Compare Asato Irifune (入船朝斗) with Katsunori Ishiguro (石黒克典)
2013KATO01: Eva Kato (加藤映葉) View WCA profile Head to head with 2014ISHI02 See who I nemesize (2603)	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 Katsunori Ishiguro (石黒克典)
2013KOBA01: Tomohiro Kobayashi (小林知広) View WCA profile Head to head with 2014ISHI02 See who I nemesize (2623)	2013KOBA01	Tomohiro Kobayashi (小林知広)	View Tomohiro Kobayashi (小林知広)'s WCA profile	Compare Tomohiro Kobayashi (小林知広) with Katsunori Ishiguro (石黒克典)
2015TAKA06: Taiga Takaoka (高岡汰虎) View WCA profile Head to head with 2014ISHI02 See who I nemesize (2584)	2015TAKA06	Taiga Takaoka (高岡汰虎)	View Taiga Takaoka (高岡汰虎)'s WCA profile	Compare Taiga Takaoka (高岡汰虎) with Katsunori Ishiguro (石黒克典)
2019NOGA01: Ao Nogami (野上碧) View WCA profile Head to head with 2014ISHI02 See who I nemesize (2652)	2019NOGA01	Ao Nogami (野上碧)	View Ao Nogami (野上碧)'s WCA profile	Compare Ao Nogami (野上碧) with Katsunori Ishiguro (石黒克典)
2022KAWA02: Takumi Kawazoe (川添匠) View WCA profile Head to head with 2014ISHI02 See my nemeses (1) See who I nemesize (2423)	2022KAWA02	Takumi Kawazoe (川添匠)	View Takumi Kawazoe (川添匠)'s WCA profile	Compare Takumi Kawazoe (川添匠) with Katsunori Ishiguro (石黒克典)