Gameplan
| Date | Round | Match | Match | Res. | Attendance | |
|---|---|---|---|---|---|---|
| 22.06.2003 |  | 1. Round First leg | Koper - NK Zagreb | KOP - NK | 1:0 | |
| 05.07.2003 | | 2. Round First leg | Koper - MFK Dubnica | KOP - | 1:0 | 2.700 |
| 26.07.2003 | | 3. Round 2nd leg | Koper - AO Egaleo | KOP - | 2:2 | |
| 06.08.2003 | | Semi-finals 2nd leg | Koper - Heerenveen | KOP - HEE | 1:0 |