Koyu Ishii has faced 64 opponents throughout his career

Player Team(s) Games
Fumihiko Aono 2
Xin Aoshima 2
Zach Baranski 1
Ira Brown 1
Brian Butch 1
Aki Chambers 1
Josh Crawford 1
Mamadou Diouf 2
Nick Fazekas 2
Yuma Fu 2
Mao Fukuda
Tsukuba (JAP-1)
2
Takumi Furuno 1
Jeff Gibbs 1
Tenketsu Harimoto 1
Takumi Hasegawa 2
Joshua Heytvelt 1
Kenta Hirose 1
Masashi Hosoya
Tsukuba (JAP-1)
2
Shota Isshiki
Tsukuba (JAP-1)
2
Taishi Ito 1
Tukashi Ito 1
Yuya Kamata 2
Yuji Kanbara 1
Satoshi Kawai
Tsukuba (JAP-1)
2
Shohei Kikuchi 1
Hiroyuki Kinoshita 1
Shintaro Kobayashi 1
Takahiro Kurihara 2
Zen Maki 2
Keijuro Matsui 1
Yoshitake Matsushima 2
Kento Matsuzaki 1
Alexis Minatoya
Tsukuba (JAP-1)
2
Yuki Mitsuhara 1
Aziz N'diaye
Tsukuba (JAP-1)
2
Yuya Nagayoshi 2
Kazuyuki Nakagawa
Tsukuba (JAP-1)
2
Tomoya Nakamura
Tsukuba (JAP-1)
2
Ryota Nakanishi 1
Tshilidzi Nephawe 1
Kohei Ninomiya 1
Takanobu Nishikawa 2
Daisuke Noguchi 2
Kengi Numato 1
Takanori Onishi 2
Michael Parker 1
Juan Pattillo
Tsukuba (JAP-1)
2
Bendorame Raiki 1
Ryota Sakurai 2
Ryusei Shinoiama 2
Richard Solomon 1
Takuya Takahama 1
Naruhisa Takamura
Tsukuba (JAP-1)
1
Kazutaka Takashima 1
Joji Takeuchi 1
Daiki Tanaka 1
Asahi Tayma 2
Jahmar Thorpe 2
Jerome Tillman 2
Naoto Tsuji 2
Naoki Uto 1
DeVaughn Washington 1
Yasuhiro Yamashita 2
Tenyoku You 1