Pre-Olympic Tournament
Arena Mexico, Mexico City, Mexico
October 16-20, 1966
a few bouts missed; daily dates may be inaccurate
Preliminaries
| 1966-10-17 | 60kg | Stoyan Pilichev | BUL | Erich Niewoehner | FRG | PTS |
| 1966-10-17 | 63,5kg | Jerzy Kulej | POL | Petar Stoychev | BUL | DQ 3 |
| 1966-10-17 | 63,5kg | Felix Betancourt | CUB | Gerhard Hilt | FRG | TKO 1 |
Quarterfinals
| 1966-10-17 | 51kg | Sergio Mencarelli | ITA | Leonardo Calderon | MEX | TKO 3 |
| 1966-10-17 | 51kg | Tomas Ochoa | MEX | Yuriy Leshchov | URS | PTS |
| 1966-10-17 | 51kg | Ricardo Delgado | MEX | Orlando Martinez | CUB | PTS |
| 1966-10-17 | 54kg | Juvencio Martinez | MEX | Salvatore Fabrizio | ITA | PTS |
| 1966-10-17 | 54kg | Fermin Espinosa | CUB | Raymundo Cardoso | MEX | PTS |
| 1966-10-17 | 57kg | Alfonso Jorge Frias | ESP | Kari Meronen | FIN | WO. |
| 1966-10-17 | 57kg | Roberto Caminero | CUB | Delfino Rodriguez | MEX | PTS |
| 1966-10-17 | 57kg | Jose Luis Bernal | MEX | Elio Cotena | ITA | PTS |
| 1966-10-17 | 60kg | Stoyan Pilichev | BUL | Guido Compiani | ITA | PTS |
| 1966-10-17 | 60kg | Jose Antonio Duran | MEX | Francisco Trujillo | ESP | PTS |
| 1966-10-18 | 63,5kg | Antoniu Vasile | ROM | Felix Dominguez | MEX | KO 1 |
| 1966-10-18 | 63,5kg | Frank Flores | MEX | ??? | ??? | ??? |
| 1966-10-18 | 63,5kg | Valeriy Frolov | URS | Alfredo Morales | MEX | ??? |
| 1966-10-18 | 63,5kg | Jerzy Kulej | POL | Felix Betancourt | CUB | KO 3 |
| 1966-10-18 | 67kg | Jose Palacios | MEX | Raul Huerta | MEX | PTS |
| 1966-10-18 | 67kg | Andrey Dolgov | URS | Dieter Kottysch | FRG | PTS |
Semifinals
| 1966-10-18 | 48kg | Alberto Morales | MEX | Mariano Garcia | ESP | PTS |
| 1966-10-18 | 48kg | Tito Ramirez | MEX | Jesus Gonzalez | MEX | PTS |
| 1966-10-19 | 51kg | Sergio Mencarelli | ITA | Lothar Kannewurf | FRG | KO 3 |
| 1966-10-19 | 51kg | Ricardo Delgado | MEX | Tomas Ochoa | MEX | PTS |
| 1966-10-19 | 54kg | Raymundo Garcia | MEX | Ryszard Andruszkiewicz | POL | PTS |
| 1966-10-19 | 54kg | Fermin Espinosa | CUB | Juvencio Martinez | MEX | PTS |
| 1966-10-19 | 57kg | Antonio Roldan | MEX | Alfonso Jorge Frias | ESP | KO 1 |
| 1966-10-19 | 57kg | Roberto Caminero | CUB | Jose Luis Bernal | MEX | TKO 2 |
| 1966-10-19 | 60kg | Jose Antonio Duran | MEX | Enrique Regueiferos | CUB | PTS |
| 1966-10-19 | 60kg | Józef Grudzień | POL | Stoyan Pilichev | BUL | PTS |
| 1966-10-19 | 63,5kg | Antoniu Vasile | ROM | Frank Flores | MEX | WO. |
| 1966-10-19 | 63,5kg | Jerzy Kulej | POL | Valeriy Frolov | URS | PTS |
| 1966-10-19 | 67kg | Andres Molina | CUB | Alfredo Cazares | MEX | KO 1 |
| 1966-10-19 | 67kg | Jose Palacios | MEX | Andrey Dolgov | URS | PTS |
| 1966-10-19 | 71kg | Yuriy Mavryashin | URS | Alfredo Luqueno | MEX | KO 1 |
| 1966-10-19 | 71kg | Agustin Zaragoza | MEX | Juan Luis Martinez | CUB | PTS |
| 1966-10-19 | 75kg | Joaquin Delis | CUB | Jose Luis Arellano | MEX | KO 3 |
Finals
| 1966-10-20 | 51kg | Ricardo Delgado | MEX | Sergio Mencarelli | ITA | PTS |
| 1966-10-20 | 54kg | Fermin Espinosa | CUB | Raymundo Garcia | MEX | PTS |
| 1966-10-20 | 57kg | Antonio Roldan | MEX | Roberto Caminero | CUB | PTS |
| 1966-10-20 | 60kg | Józef Grudzień | POL | Jose Antonio Duran | MEX | NC |
| 1966-10-20 | 63,5kg | Jerzy Kulej | POL | Antoniu Vasile | ROM | PTS |
| 1966-10-20 | 67kg | Andres Molina | CUB | Palacios | MEX | KO 1 |
| 1966-10-20 | 71kg | Yuriy Mavryashin | URS | Agustin Zaragoza | MEX | KO 1 |
| 1966-10-20 | 75kg | Viktor Ageyev | URS | Joaquin Delis | CUB | KO 2 |
both 60kg finallists are injured
source: "Przegląd Sportowy" nr 127-128 - October 20 & 22, 1966 &" Boks" nr 12/1968 (page 7) & "Scinteia" - October 20, 1966 & "El Siglo del Torreon" - October 18-21, 1966