| 4. Jornada | 16.08.2003 | NK Marsonia | - | HNK Rijeka | 1:1 |  |
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| 5. Jornada | 23.08.2003 | NK Osijek | - | NK Marsonia | 2:1 | ||||
| 6. Jornada | 30.08.2003 | NK Marsonia | - | Slaven Belupo | 0:0 | ||||
| 7. Jornada | 13.09.2003 | Hajduk Split | - | NK Marsonia | 5:0 | ||||
| 10. Jornada | 04.10.2003 | NK Marsonia | - | NK Inter Zaprešić | 0:1 | ||||
| 11. Jornada | 18.10.2003 | HNK Cibalia | - | NK Marsonia | 2:4 | ||||
| 13. Jornada | 02.11.2003 | NK Marsonia | - | Dinamo Zagreb | 1:3 | ||||
| 16. Jornada | 29.11.2003 | NK Marsonia | - | NK Osijek | 1:2 |
Croacia