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Kazumasa Tsutsui (筒井一雅) (2025TSUT01) has 19 nemeses in the country (Japan):

	WCA ID	Name
2007NAKA03: Yu Nakajima (中島悠) View WCA profile Head to head with 2025TSUT01 See who I nemesize (2895)	2007NAKA03	Yu Nakajima (中島悠)	View Yu Nakajima (中島悠)'s WCA profile	Compare Yu Nakajima (中島悠) with Kazumasa Tsutsui (筒井一雅)
2008HASH02: Wataru Hashimura (端村航) View WCA profile Head to head with 2025TSUT01 See who I nemesize (2793)	2008HASH02	Wataru Hashimura (端村航)	View Wataru Hashimura (端村航)'s WCA profile	Compare Wataru Hashimura (端村航) with Kazumasa Tsutsui (筒井一雅)
2010SUGA01: Sei Sugama (洲鎌星) View WCA profile Head to head with 2025TSUT01 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 Kazumasa Tsutsui (筒井一雅)
2012YANA01: Taku Yanai (矢内拓) View WCA profile Head to head with 2025TSUT01 See who I nemesize (2772)	2012YANA01	Taku Yanai (矢内拓)	View Taku Yanai (矢内拓)'s WCA profile	Compare Taku Yanai (矢内拓) with Kazumasa Tsutsui (筒井一雅)
2013KOBA01: Tomohiro Kobayashi (小林知広) View WCA profile Head to head with 2025TSUT01 See who I nemesize (2908)	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 Kazumasa Tsutsui (筒井一雅)
2014OKAD01: Noriyuki Okada (岡田典之) View WCA profile Head to head with 2025TSUT01 See my nemeses (1) See who I nemesize (2658)	2014OKAD01	Noriyuki Okada (岡田典之)	View Noriyuki Okada (岡田典之)'s WCA profile	Compare Noriyuki Okada (岡田典之) with Kazumasa Tsutsui (筒井一雅)
2016MANN01: Evan Akira Mann (マンエヴァン朗) View WCA profile Head to head with 2025TSUT01 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 Kazumasa Tsutsui (筒井一雅)
2018NISH03: Shoji Nishimura (西村晶司) View WCA profile Head to head with 2025TSUT01 See who I nemesize (2773)	2018NISH03	Shoji Nishimura (西村晶司)	View Shoji Nishimura (西村晶司)'s WCA profile	Compare Shoji Nishimura (西村晶司) with Kazumasa Tsutsui (筒井一雅)
2019NOGA01: Ao Nogami (野上碧) View WCA profile Head to head with 2025TSUT01 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 Kazumasa Tsutsui (筒井一雅)
2019NOMU01: Yuki Nomura (野村優希) View WCA profile Head to head with 2025TSUT01 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 Kazumasa Tsutsui (筒井一雅)
2021YAMA01: Kai Yamamoto (山本快) View WCA profile Head to head with 2025TSUT01 See who I nemesize (2806)	2021YAMA01	Kai Yamamoto (山本快)	View Kai Yamamoto (山本快)'s WCA profile	Compare Kai Yamamoto (山本快) with Kazumasa Tsutsui (筒井一雅)
2022KAWA02: Takumi Kawazoe (川添匠) View WCA profile Head to head with 2025TSUT01 See who I nemesize (2829)	2022KAWA02	Takumi Kawazoe (川添匠)	View Takumi Kawazoe (川添匠)'s WCA profile	Compare Takumi Kawazoe (川添匠) with Kazumasa Tsutsui (筒井一雅)
2022REYN10: Raiden Reynolds (レイノルズ頼傳) View WCA profile Head to head with 2025TSUT01 See my nemeses (1) See who I nemesize (2641)	2022REYN10	Raiden Reynolds (レイノルズ頼傳)	View Raiden Reynolds (レイノルズ頼傳)'s WCA profile	Compare Raiden Reynolds (レイノルズ頼傳) with Kazumasa Tsutsui (筒井一雅)
2023JAIN31: Akash Jain (ジェン明志) View WCA profile Head to head with 2025TSUT01 See who I nemesize (2660)	2023JAIN31	Akash Jain (ジェン明志)	View Akash Jain (ジェン明志)'s WCA profile	Compare Akash Jain (ジェン明志) with Kazumasa Tsutsui (筒井一雅)
2023KATO03: Takumi Kato (加藤匠) View WCA profile Head to head with 2025TSUT01 See who I nemesize (2760)	2023KATO03	Takumi Kato (加藤匠)	View Takumi Kato (加藤匠)'s WCA profile	Compare Takumi Kato (加藤匠) with Kazumasa Tsutsui (筒井一雅)
2023SAKA04: Kantaro Sakamoto (坂本貫太郎) View WCA profile Head to head with 2025TSUT01 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 Kazumasa Tsutsui (筒井一雅)
2023SHIK03: Yuto Morishita (森下優斗) View WCA profile Head to head with 2025TSUT01 See who I nemesize (2627)	2023SHIK03	Yuto Morishita (森下優斗)	View Yuto Morishita (森下優斗)'s WCA profile	Compare Yuto Morishita (森下優斗) with Kazumasa Tsutsui (筒井一雅)
2023TAKA02: Wataru Takamiya (髙宮径) View WCA profile Head to head with 2025TSUT01 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 Kazumasa Tsutsui (筒井一雅)
2024TSUT01: Haruki Tsutsui (筒井遥規) View WCA profile Head to head with 2025TSUT01 See my nemeses (1) See who I nemesize (2697)	2024TSUT01	Haruki Tsutsui (筒井遥規)	View Haruki Tsutsui (筒井遥規)'s WCA profile	Compare Haruki Tsutsui (筒井遥規) with Kazumasa Tsutsui (筒井一雅)