[9] Kamitani worked at BJW/ZERO1 Clash, a cross-over event held by BJW in partnership with Pro Wrestling Zero1 on October 30, 2020, where he teamed up with Ryuichi Kawakami in a losing effort to Drew Parker and Masato Tanaka.

[11] At the 2016 edition, he occupied a place in the Block A and competed against Daichi Hashimoto, Daisuke Sekimoto, Kohei Sato, Seiya Sanada and Atsushi Maruyama, scoring a total of six points and advancing to the finals where he got defeated by Shuji Ishikawa.

[12] Another popular event in which he participated was the Saikyo Tag League, where at the 2014 edition, he teamed up with Daisuke Sekimoto, placing themselves in the Strong Style Block, where they obtained a total of eight points after facing the teams of Koji Kanemoto and Kazuki Hashimoto, Manabu Soya and Ryuichi Kawakami, Shuji Ishikawa and Kohei Sato, Shiori Asahi and Shinobu, and Speed Of Sounds (Tsutomu Oosugi and Hercules Senga).

[13] His best performance was at the 2017 edition, where he teamed up with Daichi Hashimoto, scoring six points in the Strong Style Block where they went against the teams of Shingo Takagi and Yuji Okabayashi, Ryuichi Kawakami and Yoshihisa Uto, Ryota Hama and Yasufumi Nakanoue, Hideki Suzuki and Shogun Okamoto, and Daisuke Sekimoto and Kohei Sato who they defeated in the semi-finals, and finally Abdullah Kobayashi and Ryuji Ito who they defeated in the finals to win the league.

[18] Kamitani participated in the wXw World Tag Team League 2018, an event promoted by Westside Xtreme Wrestling (wXw) from October 5 to 7, where he teamed up with his usual tag partner Daichi Hashimoto as Okami, placing themselves in the Block A and competing against Lucha Brothers (Penta El Zero M and Rey Fenix) in a losing effort on the first night.