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| 1st(1st leg) | The Strongest | - | San Lorenzo | 2:0 (2:0) | ||
| 2nd (2nd leg) | San Lorenzo | - | The Strongest | 2:1 (0:0) | ||
| 1st(1st leg): 16/09/2003 | 2nd (2nd leg): 19/09/2003 | Winner: The Strongest | ||||
| 1st(1st leg) | Independiente | - | River Plate | 1:4 (0:2) | ||
| 2nd (2nd leg) | River Plate | - | Independiente | 4:0 (2:0) | ||
| 1st(1st leg): 17/09/2003 | 2nd (2nd leg): 08/10/2003 | Winner: River Plate | ||||
| 1st(1st leg) | São Caetano - SP | - | Santos FC | 0:1 (0:0) | ||
| 2nd (2nd leg) | Santos FC | - | São Caetano - SP | 1:1 (1:0) | ||
| 1st(1st leg): 17/09/2003 | 2nd (2nd leg): 01/10/2003 | Winner: Santos FC | ||||
| 1st(1st leg) | São Paulo FC | - | Fluminense RJ | 1:0 (1:0) | ||
| 2nd (2nd leg) | Fluminense RJ | - | São Paulo FC | 1:1 (0:0) | ||
| 1st(1st leg): 17/09/2003 | 2nd (2nd leg): 01/10/2003 | Winner: São Paulo FC | ||||
| 1st(1st leg) | LDU Quito | - | Atlético Nacional | 1:1 (0:0) | ||
| 2nd (2nd leg) | Atlético Nacional | - | LDU Quito | 1:0 (0:0) | ||
| 1st(1st leg): 18/09/2003 | 2nd (2nd leg): 02/10/2003 | Winner: Atlético Nacional | ||||
| 1st(1st leg) | Colón de Santa Fe | - | Boca Juniors | 1:1 (0:1) | ||
| 2nd (2nd leg) | Boca Juniors | - | Colón de Santa Fe | 2:1 (0:0) | ||
| 1st(1st leg): 24/09/2003 | 2nd (2nd leg): 06/10/2003 | Winner: Boca Juniors | ||||
| 1st(1st leg) | Nacional | - | Libertad | 3:0 (1:0) | ||
| 2nd (2nd leg) | Libertad | - | Nacional | 3:2 (1:0, 3:0, 3:0) pso | ||
| 1st(1st leg): 24/09/2003 | 2nd (2nd leg): 02/10/2003 | Winner: Libertad | ||||
| 1st(1st leg) | Cienciano | - | Universidad Católica | 4:0 (2:0) | ||
| 2nd (2nd leg) | Universidad Católica | - | Cienciano | 3:1 (1:1) | ||
| 1st(1st leg): 25/09/2003 | 2nd (2nd leg): 02/10/2003 | Winner: Cienciano | ||||
