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| 1st(1st leg) | Cerro Porteño | - | América de Cali | 1:0 (0:0) | ||
| 2nd (2nd leg) | América de Cali | - | Cerro Porteño | 1:2 (0:0) | ||
| 1st(1st leg): 15/04/1998 | 2nd (2nd leg): 29/04/1998 | Winner: Cerro Porteño | ||||
| 1st(1st leg) | Nacional | - | Grêmio Porto Alegre | 1:1 (1:0) | ||
| 2nd (2nd leg) | Grêmio Porto Alegre | - | Nacional | 4:0 (4:0) | ||
| 1st(1st leg): 15/04/1998 | 2nd (2nd leg): 29/04/1998 | Winner: Grêmio Porto Alegre | ||||
| 1st(1st leg) | Atlético Bucaramanga | - | Bolívar | 1:2 (0:2) | ||
| 2nd (2nd leg) | Bolívar | - | Atlético Bucaramanga | 1:0 (1:0) | ||
| 1st(1st leg): 15/04/1998 | 2nd (2nd leg): 29/04/1998 | Winner: Bolívar | ||||
| 1st(1st leg) | Barcelona | - | Colo-Colo | 2:1 (1:0) | ||
| 2nd (2nd leg) | Colo-Colo | - | Barcelona | 2:2 (0:1) | ||
| 1st(1st leg): 15/04/1998 | 2nd (2nd leg): 30/04/1998 | Winner: Barcelona | ||||
| 1st(1st leg) | Vasco da Gama - RJ | - | Cruzeiro | 2:1 (1:1) | ||
| 2nd (2nd leg) | Cruzeiro | - | Vasco da Gama - RJ | 0:0 (0:0) | ||
| 1st(1st leg): 15/04/1998 | 2nd (2nd leg): 02/05/1998 | Winner: Vasco da Gama - RJ | ||||
| 1st(1st leg) | CF América | - | River Plate | 1:1 (1:1) | ||
| 2nd (2nd leg) | River Plate | - | CF América | 1:0 (0:0) | ||
| 1st(1st leg): 22/04/1998 | 2nd (2nd leg): 07/05/1998 | Winner: River Plate | ||||
| 1st(1st leg) | Alianza Lima | - | Peñarol | 1:0 (0:0) | ||
| 2nd (2nd leg) | Peñarol | - | Alianza Lima | 3:1 (2:0, 2:1, 2:1) pso | ||
| 1st(1st leg): 22/04/1998 | 2nd (2nd leg): 29/04/1998 | Winner: Peñarol | ||||
| 1st(1st leg) | Colón de Santa Fe | - | Club Olimpia | 3:2 (2:0) | ||
| 2nd (2nd leg) | Club Olimpia | - | Colón de Santa Fe | 1:2 (0:0, 1:0, 1:0) pso | ||
| 1st(1st leg): 23/04/1998 | 2nd (2nd leg): 30/04/1998 | Winner: Colón de Santa Fe | ||||
