Tournament

Rio de Janeiro Zonal 1957 (3rd South American Zonal)

1957 · Rio de Janeiro
Oscar Panno won the South American Zonal with 13/15, 1½ points ahead of Héctor Rossetto and Raúl Sanguineti, who also qualified for the 1958 Interzonal.

Final standings

13/15
Oscar Panno won the South American Zonal with 13/15, 1½ points ahead of Héctor Rossetto and Raúl Sanguineti, who also qualified for the 1958 Interzonal.
# Player Score Record Games
1 Panno, Oscar 13/15 +12 -1 =2
=2 Rossetto, Hector 11½/15 +10 -2 =3
=2 Sanguineti, Raul 11½/15 +9 -1 =5
4 Najdorf, Miguel 11/15 +9 -2 =4
=5 Engels, Ludwig 8½/15 +6 -4 =5
=5 Humerez Estrada, Cidar 8½/15 +5 -3 =7
=7 Letelier Martner, Rene 7½/15 +5 -5 =5
=7 Esposito, Alfredo H 7½/15 +4 -4 =7
=9 Cantero, Ronaldo 7/15 +5 -6 =4
=9 Mangini, Jose Thiago 7/15 +5 -6 =4
=11 Rubio Aguado, Fernando 5½/15 +3 -7 =5
=11 Gentil Junior, Luiz 5½/15 +1 -5 =9
=13 Perez Alcocer, Jose 4½/15 +3 -9 =3
=13 Tavares da Silva, Luiz 4½/15 +3 -9 =3
15 Madeira de Ley, Manuel 4/15 +2 -9 =4
16 Cruz, Walter Oswaldo 3/15 +1 -10 =4

Cross Table

Rank Player 12345678910111213141516
1 Panno, Oscar 1 ½ 0 1 1 ½ 1 1 1 1 1 1 1 1 1
2 Rossetto, Hector 0 1 ½ 1 ½ 1 1 ½ 1 0 1 1 1 1 1
3 Sanguineti, Raul ½ 0 ½ ½ 1 1 1 ½ 1 1 1 1 1 ½ 1
4 Najdorf, Miguel 1 ½ ½ 1 ½ 1 1 0 1 ½ 1 0 1 1 1
5 Engels, Ludwig 0 0 ½ 0 1 0 ½ 1 ½ 1 ½ 1 ½ 1 1
6 Humerez Estrada, Cidar 0 ½ 0 ½ 0 ½ ½ ½ ½ 1 ½ 1 1 1 1
7 Letelier Martner, Rene ½ 0 0 0 1 ½ ½ 0 ½ 1 ½ 1 0 1 1
8 Esposito, Alfredo H 0 0 0 0 ½ ½ ½ 1 ½ ½ ½ 1 1 1 ½
9 Cantero, Ronaldo 0 ½ ½ 1 0 ½ 1 0 1 0 0 1 1 0 ½
10 Mangini, Jose Thiago 0 0 0 0 ½ ½ ½ ½ 0 1 1 1 0 1 1
11 Rubio Aguado, Fernando 0 1 0 ½ 0 0 0 ½ 1 0 ½ 0 1 ½ ½
12 Gentil Junior, Luiz 0 0 0 0 ½ ½ ½ ½ 1 0 ½ ½ ½ ½ ½
13 Perez Alcocer, Jose 0 0 0 1 0 0 0 0 0 0 1 ½ ½ ½ 1
14 Tavares da Silva, Luiz 0 0 0 0 ½ 0 1 0 0 1 0 ½ ½ 1 0
15 Madeira de Ley, Manuel 0 0 ½ 0 0 0 0 0 1 0 ½ ½ ½ 0 1
16 Cruz, Walter Oswaldo 0 0 0 0 0 0 0 ½ ½ 0 ½ ½ 0 1 0

Each cell shows the row player's recorded results against the column player. ● = same player.