Question: K-1 Grand Prix '93 was a martial arts event held by the K-1 organization on April 30, 1993 at the Yoyogi National Gymnasium in Tokyo, Japan, thetournament winner was Branko Cikatić who defeated Ernesto Hoost in the final, Hoost is a Dutch kickboxer, he announced his retirement on December 2, 2006 after the K-1 World GP Final tournament in Tokyo Dome, in which country?

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K-1 Grand Prix '97 Final: K-1 Grand Prix '97 Final was a kickboxing event promoted by the K-1 organization.  It was the fifth K-1 World Grand Prix final involving eight of the world's best heavyweight fighters (+95 kg/209 lbs), with all bouts fought under K-1 Rules.  The eight finalists had all qualified via elimination fights at the K-1 Grand Prix '97 1st Round.  Also on the card was a four-man tournament for featherweight kickboxers (57 kg/126 lbs) based in Japan and a local 'Super Fight', with all bouts fought under K-1 Rules.  In total there were fourteen fighters at the event, representing seven countries.

K-1 World Grand Prix 2008 Final: K-1 World Grand Prix 2008 Final was a martial arts event held by the K-1 on Saturday December 6, 2008 at the Yokohama Arena in Yokohama, Japan.  It was the 16th K-1 World GP Final, the culmination of a year full of regional elimination tournaments.  All fights followed the classic 8-man tournament format and were conducted under K-1 rules; three rounds of three minutes each, with a possible tiebreaker.  The qualification for the top eight fighters in this event was held at K-1 World Grand Prix 2008 in Seoul Final 16.

K-1 Grand Prix '98 Final Round: K-1 Grand Prix '98 Final Round was a martial arts event promoted by the K-1.  The event was held at the Tokyo Dome in Tokyo, Japan on Sunday, December 13, 1998 in front of 63,800 spectators.  It was the sixth K-1 World Grand Prix final involving eight of the world's best heavyweight fighters (+95 kg/209 lbs), with all bouts fought under K-1 Rules.  The eight finalists had all qualified via elimination fights at the K-1 World Grand Prix '98 Opening Round.  Also on the card was a number of 'Freshman Fights' fought under a mixture of Jiu-Jitsu Freestyle and K-1 Rules (various weight classes).  In total there were eighteen fighters at the event, representing seven countries.

K-1 Andy Memorial 2001 Japan GP Final: K-1 Andy Memorial 2001 Japan GP Final was a martial arts event promoted by the K-1 organization, named in honour of K-1 legend Andy Hug who had died the previous year.  It was an elimination tournament involving eight fighters based in Japan, with all bouts being fought under K-1 Rules (100 kg/156-220 lbs) and the winner qualifying for the K-1 World Grand Prix 2001.  Six of these fighters had qualified via the earlier K-1 Survival 2001 event while holder Musashi had qualified as last years winner and long time Tokyo resident Nicholas Pettas was a foreign invitee.  As well as tournament bouts there were a number of local and international bouts, including special 'Andy Memorial Matches', with matches fought under either K-1 or MMA Rules.  In total there were twenty two fighters at the event, representing nine countries.

K-1 Grand Prix '93: K-1 Grand Prix '93 was a martial arts event held by the K-1 organization on April 30, 1993 at the Yoyogi National Gymnasium in Tokyo, Japan.  It was the inaugural K-1 World Grand Prix, featuring an eight-man tournament fought under K-1 rules (3 min.  × 3 rounds + 1 extra round).  The eight tournament qualifiers were all invited on the basis of their achievements in the kickboxing world (for more information on this see the bulleted list below).  As well as tournament matches there was also a full contact karate bout between Andy Hug and Nobuaki Kakuda.  The event featured a total of ten fights with fighters representing seven different countries in total.  The tournament winner was Branko Cikatić who defeated Ernesto Hoost in the final by first round knockout, becoming the first ever K-1 World champion.

K-1 World Grand Prix 2010 Final: K-1 World Grand Prix 2010 Final was a martial arts event that was held by the K-1 on Saturday, December 11, 2010.  It was the 18th K-1 World GP Final, the culmination of a year full of regional elimination tournaments.  All fights followed K-1's classic tournament format and was conducted under K-1 Rules, three rounds of three minutes each, with a possible tiebreaker.  The qualification for the top eight fighters was held at the K-1 World Grand Prix 2010 in Seoul Final 16 on October 2, 2010 in Seoul, Korea.

K-1 Grand Prix '96: K-1 Grand Prix '96 was a kickboxing event promoted by the K-1 organization.  It was the fourth K-1 World Grand Prix final involving eight of the world's best heavyweight fighters (+95 kg/209 lbs), with all bouts fought under K-1 Rules.  The eight finalists had all almost qualified via elimination fights at the K-1 Grand Prix '96 Opening Battle event.  The only absentee was Stan Longinidis who was unable to participate in the tournament due to injury - he was replaced by reservist Duane Van Der Merwe.  As well as tournament bouts there were also two 'Super Fights' fought under K-1 Rules.  In total there were twelve fighters at the event, representing seven countries.

K-1 World Grand Prix: K-1 World Grand Prix, also known as the K-1 World GP, is an elimination kickboxing tournament that has been held annually since 1993 by the K-1 organization.  Each year, K-1 holds various 16-men, 8-match grand prix style tournaments throughout the world to determine which 16 fighters will compete in the K-1 World GP.  This tournament has had nine different winners with Ernesto Hoost and Semmy Schilt each winning four times.

Ernesto Hoost: Ernesto Fritz Hoost (born July 11, 1965) is a Dutch kickboxer.  A four-time K-1 World Champion, he made his debut in 1993 at the K-1 World Grand Prix 1993, where he came just one win short of the world title.  He announced his retirement on December 2, 2006 after the K-1 World GP Final tournament in Tokyo Dome, Japan.

K-1 Grand Prix '99 Final Round: K-1 Grand Prix '99 Final Round was a martial arts event promoted by the K-1 organization.  It was the seventh K-1 World Grand Prix final involving eight of the world's best fighters, with all bouts fought under K-1 Rules.  The eight finalists had all qualified via elimination fights at the K-1 World Grand Prix '99 Opening Round.  Also on the card was a number of 'Freshman Fights' and an 'Opening Fight' fought under a mixture of Jiu-Jitsu and K-1 Rules (various weight class) and two 'Super Fights' fought under K-1 Rules (various weight classes).  In total there were twenty fighters at the event, representing eight countries.

Supporting paragraphs: K-1 Grand Prix '93 Ernesto Hoost
Answer: Japan