Masato Tanaka
In 1999, Nakagawa teamed with TNR teammate Gedo to participate in a tournament for the vacant Brass Knuckles Tag Team Championship, where they scored ten points and qualified for the play-off, where they lost to Masato Tanaka and Tetsuhiro Kuroda on May 3. On June 13, Nakagawa and Gedo defeated Tanaka and Kuroda to win the title. They successfully defended the title against Sabu and Super Leather on June 15 and the title was replaced with the WEW World Tag Team Championship on June 16, with Nakagawa and Gedo being crowned the first WEW Tag Team Champions by Kodo Fuyuki. They also won the new WEW 6-Man Tag Team Championship with Fuyuki by defeating Hayabusa, Masato Tanaka and Tetsuhiro Kuroda in the final of a tournament on July 31 during the Goodbye Hayabusa tour. At , Nakagawa and Gedo lost the WEW Tag Team Championship to Tetsuhiro Kuroda and Hisakatsu Oya. At , the team of Kodo Fuyuki, Koji Nakagawa and Gedo successfully defended the WEW 6-Man Tag Team Championship against Tetsuhiro Kuroda, Hisakatsu Oya and Yoshinori Sasaki. They lost the title to Masato Tanaka, Tetsuhiro Kuroda and Hisakatsu Oya on September 23.