| 3. Round | 10/08/2003 | Slaven Belupo | - | HNK Cibalia | 0:0 | ||||
| 4. Round | 18/08/2003 | NK Varteks | - | Slaven Belupo | 2:0 | ||||
| 5. Round | 23/08/2003 | Slaven Belupo | - | Dinamo Zagreb | 0:1 | ||||
| 6. Round | 30/08/2003 | NK Marsonia | - | Slaven Belupo | 0:0 | ||||
| 7. Round | 13/09/2003 | Slaven Belupo | - | HNK Rijeka | 1:1 | ||||
| 8. Round | 20/09/2003 | NK Osijek | - | Slaven Belupo | 0:1 | ||||
| 9. Round | 27/09/2003 | Slaven Belupo | - | NK Zadar | 4:0 | ||||
| 10. Round | 04/10/2003 | Slaven Belupo | - | Hajduk Split | 1:1 |  |
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| 11. Round | 18/10/2003 | NK Zagreb | - | Slaven Belupo | 1:1 | |
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| 13. Round | 02/11/2003 | Slaven Belupo | - | NK Inter Zaprešić | 1:1 | ||||
| 14. Round | 08/11/2003 | HNK Cibalia | - | Slaven Belupo | 1:1 |  |
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| 15. Round | 22/11/2003 | Slaven Belupo | - | NK Varteks | 2:1 | ||||
| 16. Round | 01/12/2003 | Dinamo Zagreb | - | Slaven Belupo | 4:0 | ||||
| 17. Round | 06/12/2003 | Slaven Belupo | - | NK Marsonia | 3:1 | ||||
| 18. Round | 21/02/2004 | HNK Rijeka | - | Slaven Belupo | 2:0 | ||||
| 20. Round | 06/03/2004 | NK Zadar | - | Slaven Belupo | 2:0 | ||||
| 21. Round | 13/03/2004 | Hajduk Split | - | Slaven Belupo | 2:1 | ||||
| 22. Round | 20/03/2004 | Slaven Belupo | - | NK Zagreb | 1:0 | |
Croatia