| 1. Round | 20/03/1998 | Gamba Osaka | - | Cerezo Osaka | 1:2 | ||||
| 2. Round | 24/03/1998 | Sanfrecce Hiroshima | - | Gamba Osaka | 0:1 aet | ||||
| 3. Round | 27/03/1998 | Gamba Osaka | - | Avispa Fukuoka | 3:2 |  |
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| 4. Round | 03/04/1998 | Consadole Sapporo | - | Gamba Osaka | 1:0 | ||||
| 5. Round | 10/04/1998 | Gamba Osaka | - | Shimizu S-Pulse | 1:2 | |
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| 6. Round | 14/04/1998 | Kashima Antlers | - | Gamba Osaka | 1:0 | ||||
| 7. Round | 17/04/1998 | Gamba Osaka | - | Kashiwa Reysol | 3:1 | ||||
| 8. Round | 24/04/1998 | Gamba Osaka | - | Kyoto Purple Sanga | 0:1 | ||||
| 9. Round | 28/04/1998 | Yokohama F. Marinos | - | Gamba Osaka | 2:1 | ||||
| 10. Round | 01/05/1998 | Gamba Osaka | - | Urawa Red Diamonds | 0:2 | ||||
| 11. Round | 04/05/1998 | Nagoya Grampus Eight | - | Gamba Osaka | 1:3 pso | ||||
| 12. Round | 08/05/1998 | Gamba Osaka | - | Bellmare Hiratsuka | 1:2 aet | ||||
| 13. Round | 24/07/1998 | Júbilo Iwata | - | Gamba Osaka | 4:1 | |
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| 14. Round | 28/07/1998 | Gamba Osaka | - | Verdy Kawasaki | 2:4 | ||||
| 15. Round | 31/07/1998 | Vissel Kobe | - | Gamba Osaka | 0:4 | |
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| 16. Round | 04/08/1998 | Gamba Osaka | - | JEF United Ichihara | 3:2 aet | |
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| 17. Round | 07/08/1998 | Yokohama Flügels | - | Gamba Osaka | 3:6 | |
Japan