| date | stage | club1 | club2 | goals | |
| 1998-07-22 | Qualifying_Round_1 | Arges_Pitesti(Romania) | Dinamo_Baku(Azerbaijan) | 5 | 1 | - |
| 1998-07-22 | Qualifying_Round_1 | Belshina_Bobruisk(Belarus) | CSKA_Sofia(Bulgaria) | 0 | 0 | - |
| 1998-07-22 | Qualifying_Round_1 | Omonia_Nicosia(Cyprus) | Linfield_Belfast(Northern Ireland) | 5 | 1 | - |
| 1998-07-22 | Qualifying_Round_1 | Shakhtar_Donetsk(Ukraine) | Birkirkara(Malta) | 2 | 1 | - |
| 1998-07-22 | Qualifying_Round_1 | Kolkheti-1913_Poti(Georgia) | Red_Star_Belgrade(Serbia) | 0 | 4 | - |
| 1998-07-22 | Qualifying_Round_1 | Inter_Bratislava(Slovakia) | KF_Tirana(Albania) | 2 | 0 | - |
| 1998-07-22 | Qualifying_Round_1 | Sadam_Tallinn(Estonia) | Polonia_Warsaw(Poland) | 0 | 2 | - |
| 1998-07-22 | Qualifying_Round_1 | HB_Torshavn(Faroe Islands) | VPS_Vaasa(Finland) | 2 | 0 | - |
| 1998-07-22 | Qualifying_Round_1 | Zeljeznicar_Sarajevo(Bosnia-Herzegovina) | Kilmarnock(Scotland) | 1 | 1 | - |
| 1998-07-22 | Qualifying_Round_1 | Mura_Murska_Sobota(Slovenia) | Daugava_Riga(Latvia) | 6 | 1 | - |
| 1998-07-22 | Qualifying_Round_1 | IA_Akranes(Iceland) | Zalgiris_Vilnius(Lithuania) | 3 | 2 | - |
| 1998-07-22 | Qualifying_Round_1 | Hapoel_Tel-Aviv(Israel) | Finnpa_Helsinki(Finland) | 3 | 1 | - |
| 1998-07-22 | Qualifying_Round_1 | Shirak_Gyumri(Armenia) | Malmo_FF(Sweden) | 0 | 2 | - |
| 1998-07-21 | Qualifying_Round_1 | Germinal_Ekeren(Belgium) | FK_Sarajevo(Bosnia-Herzegovina) | 4 | 1 | - |
| 1998-07-22 | Qualifying_Round_1 | Shelbourne(Ireland) | Glasgow_Rangers(Scotland) | 3 | 5 | - |
| 1998-07-22 | Qualifying_Round_1 | Otelul_Galati(Romania) | Sloga_Skopje(North_Macedonia) | 3 | 0 | - |
| 1998-07-22 | Qualifying_Round_1 | Union_Luxembourg(Luxembourg) | IFK_Goteborg(Sweden) | 0 | 3 | - |
| 1998-07-22 | Qualifying_Round_1 | Ferencvaros(Hungary) | CE_Principat(Andorra) | 6 | 0 | - |
| 1998-07-22 | Qualifying_Round_1 | Tiligul_Tiraspol(Moldova) | Anderlecht(Belgium) | 0 | 1 | - |
| 1998-07-22 | Qualifying_Round_1 | Newtown(Wales) | Wisla_Krakow(Poland) | 0 | 0 | - |
| 1998-07-29 | Qualifying_Round_1 | Dinamo_Baku(Azerbaijan) | Arges_Pitesti(Romania) | 0 | 2 | - |
| 1998-07-29 | Qualifying_Round_1 | CSKA_Sofia(Bulgaria) | Belshina_Bobruisk(Belarus) | 3 | 1 | - |
| 1998-07-29 | Qualifying_Round_1 | Linfield_Belfast(Northern Ireland) | Omonia_Nicosia(Cyprus) | 5 | 3 | - |
| 1998-07-29 | Qualifying_Round_1 | Birkirkara(Malta) | Shakhtar_Donetsk(Ukraine) | 0 | 4 | - |
| 1998-07-29 | Qualifying_Round_1 | Red_Star_Belgrade(Serbia) | Kolkheti-1913_Poti(Georgia) | 7 | 0 | - |
| 1998-07-29 | Qualifying_Round_1 | KF_Tirana(Albania) | Inter_Bratislava(Slovakia) | 0 | 2 | - |
| 1998-07-29 | Qualifying_Round_1 | Polonia_Warsaw(Poland) | Sadam_Tallinn(Estonia) | 3 | 1 | - |
| 1998-07-29 | Qualifying_Round_1 | VPS_Vaasa(Finland) | HB_Torshavn(Faroe Islands) | 4 | 0 | - |
| 1998-07-29 | Qualifying_Round_1 | Kilmarnock(Scotland) | Zeljeznicar_Sarajevo(Bosnia-Herzegovina) | 1 | 0 | - |
| 1998-07-29 | Qualifying_Round_1 | Daugava_Riga(Latvia) | Mura_Murska_Sobota(Slovenia) | 1 | 2 | - |
| 1998-07-29 | Qualifying_Round_1 | Zalgiris_Vilnius(Lithuania) | IA_Akranes(Iceland) | 1 | 0 | - |
| 1998-07-29 | Qualifying_Round_1 | Finnpa_Helsinki(Finland) | Hapoel_Tel-Aviv(Israel) | 1 | 3 | - |
| 1998-07-29 | Qualifying_Round_1 | Malmo_FF(Sweden) | Shirak_Gyumri(Armenia) | 5 | 0 | - |
| 1998-07-28 | Qualifying_Round_1 | FK_Sarajevo(Bosnia-Herzegovina) | Germinal_Ekeren(Belgium) | 0 | 0 | - |
| 1998-07-29 | Qualifying_Round_1 | Glasgow_Rangers(Scotland) | Shelbourne(Ireland) | 2 | 0 | - |
| 1998-07-29 | Qualifying_Round_1 | Sloga_Skopje(North_Macedonia) | Otelul_Galati(Romania) | 1 | 1 | - |
| 1998-07-28 | Qualifying_Round_1 | IFK_Goteborg(Sweden) | Union_Luxembourg(Luxembourg) | 4 | 0 | - |
| 1998-07-29 | Qualifying_Round_1 | CE_Principat(Andorra) | Ferencvaros(Hungary) | 1 | 8 | - |
| 1998-07-29 | Qualifying_Round_1 | Anderlecht(Belgium) | Tiligul_Tiraspol(Moldova) | 5 | 0 | - |
| 1998-07-29 | Qualifying_Round_1 | Wisla_Krakow(Poland) | Newtown(Wales) | 7 | 0 | - |
| 1998-08-11 | Qualifying_Round_2 | Red_Star_Belgrade(Serbia) | Rotor(Russia) | 2 | 1 | - |
| 1998-08-11 | Qualifying_Round_2 | Ferencvaros(Hungary) | AEK_Athens(Greece) | 4 | 2 | - |
| 1998-08-11 | Qualifying_Round_2 | Germinal_Ekeren(Belgium) | Servette_FC_Geneve(Switzerland) | 1 | 4 | - |
| 1998-08-11 | Qualifying_Round_2 | Arges_Pitesti(Romania) | Istanbulspor(Turkey) | 2 | 0 | - |
| 1998-08-11 | Qualifying_Round_2 | Molde_FK(Norway) | CSKA_Sofia(Bulgaria) | 0 | 0 | - |
| 1998-08-11 | Qualifying_Round_2 | IFK_Goteborg(Sweden) | Fenerbahce(Turkey) | 2 | 1 | - |