WKF - World Karate Organization - 10th World Championships Mexico City (1990)
Open Kumite
| Rang | Catégorie | Champion | Pays |
| 1 | Open Kumite | Wayne Otto | Great Britain |
| 2 | Open Kumite | Steve Jez | Great Britain |
| 3 | Open Kumite | Victor Alvarado | Spain |
| 4 | Open Kumite | Anthony Leito | Netherlands |
Open Kumite Ippon
| Rang | Catégorie | Champion | Pays |
| 1 | Open Kumite Ippon | Giovanni Tramontini | France |
| 2 | Open Kumite Ippon | Veselin Micovic | Yugoslavia |
| 3 | Open Kumite Ippon | Yorihisa Uchida | Japan |
| 4 | Open Kumite Ippon | Marc Hamon | Canada |
Kumite -60 kg
| Rang | Catégorie | Champion | Pays |
| 1 | Kumite -60 kg | Stein Running | Norway |
| 2 | Kumite -60 kg | Hideto Nakano | Japan |
| 3 | Kumite -60 kg | Hakan Yagli | Turkey |
| 3 | Kumite -60 kg | Veysel Bugur | Turkey |
Kumite -65 kg
| Rang | Catégorie | Champion | Pays |
| 1 | Kumite -65 kg | Toshikatsu Azumi | Japan |
| 2 | Kumite -65 kg | Goran Romi | Yugoslavia |
| 3 | Kumite -65 kg | Bahattin Kandaz | Turkey |
| 3 | Kumite -65 kg | José Puertas | Spain |
Kumite -70 kg
| Rang | Catégorie | Champion | Pays |
| 1 | Kumite -70 kg | Haldun Alaga | Turkey |
| 2 | Kumite -70 kg | Vincenzo Amicone | Italy |
| 3 | Kumite -70 kg | William Thomas | Great Britain |
| 3 | Kumite -70 kg | Yoshimiro Anzai | Japan |
Kumite -75 kg
| Rang | Catégorie | Champion | Pays |
| 1 | Kumite -75 kg | Hideo Tamaru | Japan |
| 2 | Kumite -75 kg | Paul Alderson | Great Britain |
| 3 | Kumite -75 kg | Gennaro Talarico | Italy |
| 3 | Kumite -75 kg | Greg Francis | Great Britain |
Kumite -80 kg
| Rang | Catégorie | Champion | Pays |
| 1 | Kumite -80 kg | José Manuel Egea | Spain |
| 2 | Kumite -80 kg | Morten Alstadsther | Norway |
| 3 | Kumite -80 kg | Oliver Pokomi | Sweden |
| 3 | Kumite -80 kg | Roberto Herníndez | Mexico |
Kumite +80 kg
| Rang | Catégorie | Champion | Pays |
| 1 | Kumite +80 kg | Marc Pyrée | France |
| 2 | Kumite +80 kg | Ian Cole | Great Britain |
| 3 | Kumite +80 kg | Ibrahim Ercin | Turkey |
| 3 | Kumite +80 kg | Ralf Brachmann | Germany |