K-1 World Grand Prix 2002 Final was a kickboxing event promoted by the K-1. The event was held at the Tokyo Dome in Tokyo, Japan on Saturday, December 7, 2002 in front of 74,500 spectators. It was the tenth K-1 World Grand Prix final, involving ten of the world's top fighters (two being reservists), with all bouts fought under K-1 Rules (100 kg/156-220 lbs). The eight finalists had almost all qualified via preliminary events, while two additional fighters were invited as reserve fighters (for more detail on this see bulleted list below). In total there were ten fighters at the event, representing eight countries.

K-1 World Grand Prix 2006 in Tokyo Final was a kickboxing promoted by the K-1. The tournament qualifiers had all qualified via elimination fights at the K-1 World Grand Prix 2006 in Osaka Opening Round. Losing fighters Musashi and Ray Sefo were invited as reserve fighters while Badr Hari and Paul Slowinski would face one another in a 'Super Fight'. Peter Aerts and Melvin Manhoef were also invited to the event as reservists. As well as tournament bouts there were also a number of 'Opening Fights' primarily involving local fighters, fought under K-1 Rules. In total there were eighteen fighters at the event, representing ten countries.

K-1 World Grand Prix 2004 Final was a kickboxing event promoted by the K-1 organization. It was the twelfth K-1 World Grand Prix final, involving twelve of the world's best K-1 fighters (four being reservists) from eight countries, with all bouts fought under K-1 Rules (100 kg/156-220 lbs). The tournament qualifiers had almost all qualified via the K-1 World Grand Prix 2004 Final Elimination with the exception of Remy Bonjasky who was the reigning champion.

K-1 World Grand Prix 2005 in Tokyo Final was a kickboxing event promoted by the K-1. The event was held at the Tokyo Dome in Tokyo, Japan on Saturday, November 19, 2005 in front of 58,213 spectators. It was the thirteenth K-1 World Grand Prix final, involving twelve of the world's best K-1 fighters (four being reservists), with all bouts fought under K-1 Rules (100 kg/156-220 lbs). The tournament qualifiers had almost all qualified via the K-1 World Grand Prix 2005 in Osaka - Final Elimination with the exception of Remy Bonjasky who was the reigning champion. As well as tournament matches there was also an 'Opening Fight' fought under K-1 Rules between Patrick Barry and Alexander Pitchkounov. In total there were fourteen fighters at the event, representing eleven countries

The K-1 WORLD GP 2002 開幕戦 (Opening Tournament) takes place on February 24, 2002, at Saitama Super Arena in Saitama, Japan. This kickboxing event features an eight-man Heavyweight Grand Prix to kick off the 2002 season, with fighters including Peter Aerts vs. Sergei Gur, Ernesto Hoost vs. Tsuyoshi Nakasako, Mark Hunt vs. Adam Watt, and Stefan Leko vs. Jorgen Kruth. The tournament progresses through quarterfinals, semifinals, and a final to determine the opening round winner, with Peter Aerts emerging victorious over Ernesto Hoost by decision. Additional superfights include Mike Bernardo vs. Alexei Ignashov and a K-1 vs. Muay Thai bout with Kaoklai Kaennorsing. It’s the explosive start to K-1’s 2002 World Grand Prix journey, drawing 19,500 fans.