Miguel Najdorf dominated the 1946 Mar del Plata tournament, scoring 16/18 to finish three points ahead of Gideon Ståhlberg. Nineteen players completed 171 games in one of the largest round robins in this batch.
A decisive victory
Najdorf's 16/18 gave him a three-point winning margin. Ståhlberg was second on 13, Paul Michel third on 11, and Carlos Guimard fourth on 10½; four players shared the next score on 10.
All 171 games
The nineteen players met once each, with one player sitting out each of the nineteen rounds. All 171 games survive, and the table matches the published standings.
Final standings
| # | Player | Score | Record | Games |
|---|---|---|---|---|
| 1 | Najdorf, Miguel | 16/18 | +15 -1 =2 | games |
| 2 | Stahlberg, Gideon | 13/18 | +9 -1 =8 | games |
| 3 | Michel, Paul | 11/18 | +8 -4 =6 | games |
| 4 | Guimard, Carlos Enrique | 10½/18 | +5 -2 =11 | games |
| =5 | Corte, Cesar Juan | 10/18 | +9 -7 =2 | games |
| =5 | Hounie Fleurquin, Carlos | 10/18 | +8 -6 =4 | games |
| =5 | Luckis, Marcos | 10/18 | +6 -4 =8 | games |
| =5 | Bolbochan, Jacobo | 10/18 | +4 -2 =12 | games |
| 9 | Pilnik, Hermann | 9½/18 | +7 -6 =5 | games |
| 10 | Reinhardt, Enrique Heinrich | 9/18 | +7 -7 =4 | games |
| 11 | Letelier Martner, Rene | 8½/18 | +6 -7 =5 | games |
| =12 | Iliesco, Juan Traian | 8/18 | +7 -9 =2 | games |
| =12 | Maderna, Carlos Hugo | 8/18 | +6 -8 =4 | games |
| =12 | Sanguinetti, Renato | 8/18 | +5 -7 =6 | games |
| =12 | Souza Mendes, Joao | 8/18 | +4 -6 =8 | games |
| 16 | Rocas, Orlando | 6½/18 | +3 -8 =7 | games |
| 17 | Garcia Vera, Romeo | 5½/18 | +3 -10 =5 | games |
| 18 | Maccioni Seisdedos, Alejandro | 5/18 | +3 -11 =4 | games |
| 19 | Bauza, Lorenzo | 4½/18 | +3 -12 =3 | games |
Cross Table
| Rank | Player | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Najdorf, Miguel | 1 | 1 | 1 | 1 | 1 | 1 | 1 | ½ | ½ | 1 | 1 | 0 | 1 | 1 | 1 | 1 | 1 | 1 | |
| 2 | Stahlberg, Gideon | 0 | 1 | ½ | ½ | 1 | ½ | ½ | 1 | ½ | ½ | 1 | 1 | 1 | 1 | ½ | ½ | 1 | 1 | |
| 3 | Michel, Paul | 0 | 0 | ½ | 1 | 0 | ½ | ½ | ½ | ½ | 1 | 1 | 0 | 1 | ½ | 1 | 1 | 1 | 1 | |
| 4 | Guimard, Carlos Enrique | 0 | ½ | ½ | ½ | 1 | ½ | ½ | ½ | 0 | ½ | ½ | 1 | ½ | ½ | 1 | 1 | 1 | ½ | |
| 5 | Corte, Cesar Juan | 0 | ½ | 0 | ½ | 1 | 1 | 0 | 0 | 1 | 0 | 1 | 1 | 0 | 0 | 1 | 1 | 1 | 1 | |
| 6 | Hounie Fleurquin, Carlos | 0 | 0 | 1 | 0 | 0 | ½ | ½ | ½ | 1 | 0 | 1 | 0 | 1 | 1 | 1 | ½ | 1 | 1 | |
| 7 | Luckis, Marcos | 0 | ½ | ½ | ½ | 0 | ½ | 1 | 0 | 1 | 1 | 0 | ½ | ½ | ½ | ½ | 1 | 1 | 1 | |
| 8 | Bolbochan, Jacobo | 0 | ½ | ½ | ½ | 1 | ½ | 0 | ½ | 1 | ½ | 1 | ½ | ½ | ½ | ½ | 1 | ½ | ½ | |
| 9 | Pilnik, Hermann | ½ | 0 | ½ | ½ | 1 | ½ | 1 | ½ | 0 | 0 | 0 | 1 | 1 | 0 | 1 | 1 | 0 | 1 | |
| 10 | Reinhardt, Enrique Heinrich | ½ | ½ | ½ | 1 | 0 | 0 | 0 | 0 | 1 | ½ | 0 | 0 | 1 | 1 | 1 | 1 | 0 | 1 | |
| 11 | Letelier Martner, Rene | 0 | ½ | 0 | ½ | 1 | 1 | 0 | ½ | 1 | ½ | 0 | 1 | 0 | 0 | 1 | 0 | ½ | 1 | |
| 12 | Iliesco, Juan Traian | 0 | 0 | 0 | ½ | 0 | 0 | 1 | 0 | 1 | 1 | 1 | 1 | 1 | 1 | ½ | 0 | 0 | 0 | |
| 13 | Maderna, Carlos Hugo | 1 | 0 | 1 | 0 | 0 | 1 | ½ | ½ | 0 | 1 | 0 | 0 | ½ | ½ | 0 | 0 | 1 | 1 | |
| 14 | Sanguinetti, Renato | 0 | 0 | 0 | ½ | 1 | 0 | ½ | ½ | 0 | 0 | 1 | 0 | ½ | 1 | ½ | ½ | 1 | 1 | |
| 15 | Souza Mendes, Joao | 0 | 0 | ½ | ½ | 1 | 0 | ½ | ½ | 1 | 0 | 1 | 0 | ½ | 0 | ½ | ½ | ½ | 1 | |
| 16 | Rocas, Orlando | 0 | ½ | 0 | 0 | 0 | 0 | ½ | ½ | 0 | 0 | 0 | ½ | 1 | ½ | ½ | 1 | 1 | ½ | |
| 17 | Garcia Vera, Romeo | 0 | ½ | 0 | 0 | 0 | ½ | 0 | 0 | 0 | 0 | 1 | 1 | 1 | ½ | ½ | 0 | ½ | 0 | |
| 18 | Maccioni Seisdedos, Alejandro | 0 | 0 | 0 | 0 | 0 | 0 | 0 | ½ | 1 | 1 | ½ | 1 | 0 | 0 | ½ | 0 | ½ | 0 | |
| 19 | Bauza, Lorenzo | 0 | 0 | 0 | ½ | 0 | 0 | 0 | ½ | 0 | 0 | 0 | 1 | 0 | 0 | 0 | ½ | 1 | 1 |
Each cell shows the row player's recorded results against the column player. ● = same player.