better known by his ring name Koji Doi is a Japanese professional wrestler currently working as a freelancer and is best known for his tenure with the Japanese promotions Wrestle-1 and All Japan Pro Wrestling. Professional wrestling career Independent circuit (2011–present) Doi has made freelance work ever since he started his career, competing in various promotions from the Japanese independent scene. At Endless Survivor 2014, an event promoted by Big Japan Pro Wrestling on May 5, he teamed up with Masaya Takahashi to defeat Hideyoshi Kamitani and Takayuki Ueki. At Zero1 Yamanashi Pro Wrestling Festival Vol. 5 on November 13, 2022, he teamed up with Shoki Kitamura to defeat Minorita and Tsugutaka Sato. Wrestle-1 (2014–2020) Doi is probably best known for his time in now defunct promotion Wrestle-1. He made his debut in the company at W-1 WRESTLE-1 Tour 2014 After The IMPACT on July 12, where he teamed up with Yusuke Kodama in a losing effort against Daiki Inaba and Yasufumi Nakanoue. During his time in the company, he chased for various titles promoted by it. Doi is a former five-time Wrestle-1 Tag Team Champion, titles which he held with three different partners, a four-time UWA World Trios Champion and a former Wrestle-1 Result Champion. In separate occasions, he even challenged for titles owned by other promotions but held by Wrestle-1 personnel. At W-1 WRESTLE-1 Tour 2020 Sunrise on January 12, he unsuccessfully challenged Shigehiro Irie for the OWE Openweight Championship. On April 1, 2020, at W-1 WRESTLE-1 Tour 2020 Trans Magic, Wrestle-1 has held its last event before closure. Doi teamed up with Daiki Inaba and Enfants Terribles (Kuma Arashi and Shotaro Ashino) in a losing effort against Kaz Hayashi, Keiji Muto, Masayuki Kono and Shuji Kondo as a result of an eight-man tag team match. He is known for competing in various of the promotion's signature events. In the Wrestle-1 Grand Prix, which was the biggest yearly event promoted by the company, he made his first appearance at the 2015 edition which was also the first ever held, where he defeated Masayuki Kono in the first rounds but fell short to Tajiri in the second ones. At the 2016 edition he fell short to Akira in the first rounds. At the 2017 edition, he fell short to Jiro Kuroshio in the first rounds. At the 2018 edition, he fell short to Shuji Kondo in the first rounds.