| March 30, 1966 | CL | 1966 | 1 | Boca Juniors | 3 - 1 | Club Guaraní | 1 | |||
| March 30, 1966 | CL | 1966 | 2 | Peñarol | 0 - 1 | Universidad Católica | 1 |
| GP | W | T | L | gf | ga | gf/ga | |||
|---|---|---|---|---|---|---|---|---|---|
| Boca Juniors | CL | 1966 | 11 | 8 | 0 | 3 | 22 | 10 | 2.20 |
| Peñarol | CL | 1966 | 11 | 8 | 0 | 3 | 20 | 11 | 1.82 |
| Club Guaraní | CL | 1966 | 8 | 3 | 2 | 3 | 12 | 13 | 0.92 |
| Universidad Católica | CL | 1966 | 7 | 3 | 3 | 1 | 10 | 5 | 2.00 |