Overall, there have been 71 reigns shared among 34 wrestlers. Title changes happen mostly at NJPW-promoted events, as it has only changed hands at non-NJPW events twice. Reigns 36 and 37 occurred on World Championship Wrestling's Nitro television broadcast, when Juventud Guerrera defeated Jushin Thunder Liger on November 29, 1999, and on December 6, 1999 when Liger retrieved the championship by defeating Guerrera's stand-in Psychosis. The inaugural champion was Shiro Koshinaka, who defeated The Cobra on February 6, 1986 in the finals of a tournament. Liger holds the record of most reigns, with 11. At 628 days, Liger's sixth reign is the longest in the title's history. Liger, with a combined 11 reigns, holds the record for most days as champion at 2,245. Guerrera's only reigns holds the record for shortest reign at one week. With 11 successful defenses, Minoru Tanaka's reign under the ring name "Heat" had the most during a single reign. Over his 11 reigns, Liger successfully defended the title 31 times, the most of any champion. With zero, El Samurai's second reign, Hiroshi Hase's second reign, Tiger Mask IV's fourth and sixth reigns, Liger's fourth reign, Guerrera's only reign, Pegasus Kid's only reign, Low Ki's third reign and Kushida's first reign are all tied for least successful defenses. Kushida is the current champion in his second reign, after defeating Kenny Omega on July 5, 2015, at NJPW's Dominion 7.5 in Osaka-jo Hall to win the title.