Chi In-jin

On February 24, 2008, Chi made his debut as a K-1 fighter on the K-1 Asia MAX 2008 in Seoul. He defeated Ryuji Kajiwara by 3-0 unanimous decision on the extra rounds.

On July 31, 2007, Chi announced he was vacating his title. He will instead participate in K-1 kickboxing.

Chi recaptured the WBC featherweight title with a unanimous decision over defending titlist Rudy Lopez at the Chungmu Art Hall in Seoul, Korea, in December 2006. Scores were 117-111, 116-112 and 116-113. Koshimoto had been defeated by Lopez in his first defense, yielding the belt to Lopez before it was regained by Chi.

Chi made his debut as a professional boxer on November 20, 1991. After losing his pro debut, he went unbeaten in his next 24 bouts. He challenged WBC Featherweight Title holder Erik Morales on July 28, 2001, but lost a unanimous decision. On October 18, 2003, the brawling Chi got another shot at the vacant WBC featherweight title against Michael Brodie, but came up short of the title with a draw. In the rematch the following year, he knocked out Brodie in the 7th round. After defending the title twice, he lost the belt to Takashi Koshimoto in 2006 via split decision.

Chi In-jin (Korean: 지인진, Hanja: 池仁珍, born July 18, 1973, in Seoul) is a South Korean former boxer in the featherweight division. He is a former World Boxing Council (WBC) featherweight champion.