Ce K-1 World Grand Prix 2012 Final a été organisé par les nouveaux propriétaires du K-1 et a eu lieu le 15 mars 2013 à Zagreb, en Croatie. C'était la 19ème édition du K-1 World Grand Prix et la première depuis que le K-1 appartient à Global Holdings Ltd by EMCOM Entertainment. Fait notable : pour la première fois, le tournoi final annuel a eu lieu hors du Japon.
| Reserve Fight: K-1 rules / 3Min. 3R Ext. 1R | |
 Dževad Poturak vs. Sergei Lascenko  |
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| Poturak defeated Lascenko by 3rd round unanimous decision 3-0. | |
|---|---|
| Quarter finals: K-1 rules / 3Min. 3R Ext. 1R | |
 Cătălin Moroşanu vs. Pavel Zhuravlev |
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| Zhuravlev defeated Moroşanu by 3rd round unanimous decision 3-0. | |
 Mirko Filipović vs. Jarrell Miller  |
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| Filipović defeated Miller by 3rd round unanimous decision 3-0. | |
 Badr Hari vs. Zabit Samedov  |
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| Hari defeated Samedov by 3rd round unanimous decision 3-0. | |
 Ismael Londt vs. Hesdy Gerges  |
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| Londt defeated Gerges by 3rd round TKO. | |
| Super Fight (1): K-1 rules / 3Min. 3R Ext. 1R | |
 Xie Chuang vs. Samo Petje  |
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| Chuang defeated Petje by 3rd round unanimous decision 3-0. | |
| Super Fight (2): K-1 rules / 3Min. 3R Ext. 1R | |
Emil Zoraj vs. Edmond Paltatzis  |
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| Zoraj defeated Sofokleus by 2nd round KO. | |
| Semi final (1): K-1 rules / 3Min. 3R Ext. 1R | |
| Pavel Zhuravlev vs. Mirko Filipović |
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| Filipović defeated Zhuravlev by 3rd round unanimous decision 3-0. | |
| Super Fight (3): K-1 rules / 3Min. 3R Ext. 1R | |
Toni Milanović vs. Jason Wilnis  |
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| Wilnis defeated Milanović by 1st round TKO. | |
| Semi final (2): K-1 rules / 3Min. 3R Ext. 1R | |
| Dževad Poturak vs. Ismael Londt |
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| Londt defeated Poturak by 2nd round TKO. | |
| Super Fight (4): K-1 rules / 3Min. 3R Ext. 1R | |
| Agron Preteni vs. Andrei Stoica |
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| Preteni defeated Stoica by 3rd round unanimous decision 3-0. | |
| Super Fight (5): K-1 rules / 3Min. 3R Ext. 1R | |
Mladen Brestovac vs. Frank Muñoz  |
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| Brestovac defeated Muñoz by 3rd round unanimous decision 3-0. | |
| Final: K-1 rules / 3Min. 3R Ext. 1R | |
| Mirko Filipović def. Ismael Londt |
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| Filipović defeated Ismael by 3rd round unanimous decision 3-0. | |
C'est ainsi Mirko "Crop-Cop" Filipovic qui s'impose à 38 ans, 13 années après avoir été finaliste du K1 Grand Prix 1999 face à Ernesto Hoost ! Entre-temps, "Cro-Cop" avait été l'un des meilleurs poids lourds au monde en MMA et avait même gagné le Prix Grand Prix 2006 après avoir battu Wanderlei Silva (le champion des 93 kg) en demi-finale et Josh Barnett (le tombeur d'Antonio Rodrigo "Minotauro" Nogueira) en finale.
