Croatia Open Umag 1998
Bohdan Ulihrach won the title, beating Magnus Norman 6–3 7–6(0) in the final.
Main draw 32 players
- 1🇪🇸Carlos MoyaRound of 32 · Lost to Paul Haarhuis
- 2🇪🇸Felix MantillaQuarterfinals · Lost to Bohdan Ulihrach
- 3🇸🇰Karol KuceraQuarterfinals · Lost to Magnus Norman
- 4🇧🇷Gustavo KuertenQuarterfinals · Lost to Mariano Puerta
- 5🇸🇰Dominik HrbatyRound of 32 · Lost to Mariano Puerta
- 6🇸🇪Magnus NormanFinal · Lost to Bohdan Ulihrach
- 7🇨🇿Bohdan UlihrachFinal · Champion
- 8🇮🇹Davide SanguinettiRound of 16 · Lost to Juan Antonio Marin
- CRCJuan Antonio MarinSemifinals · Lost to Magnus Norman
- 🇦🇷Mariano PuertaSemifinals · Lost to Bohdan Ulihrach
- 🇳🇱Paul HaarhuisQuarterfinals · Lost to Juan Antonio Marin
- 🇷🇴Adrian VoineaRound of 16 · Lost to Felix Mantilla
- Q🇸🇮Borut UrhRound of 16 · Lost to Karol Kucera
- 🇪🇸Jacobo DiazRound of 16 · Lost to Bohdan Ulihrach
- 🇪🇸Javier SanchezRound of 16 · Lost to Mariano Puerta
- 🇨🇿Jiri NovakRound of 16 · Lost to Gustavo Kuerten
- 🇪🇸Jordi BurilloRound of 16 · Lost to Paul Haarhuis
- Q🇮🇹Stefano CobolliRound of 16 · Lost to Magnus Norman
- 🇷🇴Dinu PescariuRound of 32 · Lost to Bohdan Ulihrach
- WC🇭🇷Emanuel RasbergerRound of 32 · Lost to Jacobo Diaz
- WC🇭🇷Ivan LjubicicRound of 32 · Lost to Magnus Norman
- 🇩🇪Jens KnippschildRound of 32 · Lost to Jordi Burillo
- 🇩🇪Lars BurgsmullerRound of 32 · Lost to Felix Mantilla
- Q🇨🇿Libor NemecekRound of 32 · Lost to Borut Urh
- 🇩🇪Marc Kevin GoellnerRound of 32 · Lost to Gustavo Kuerten
- 🇧🇷Marcio CarlssonRound of 32 · Lost to Adrian Voinea
- 🇮🇹Marzio MartelliRound of 32 · Lost to Javier Sanchez
- 🇧🇬Orlin StanoytchevRound of 32 · Lost to Davide Sanguinetti
- 🇮🇹Renzo FurlanRound of 32 · Lost to Juan Antonio Marin
- 🇪🇸Sergi BrugueraRound of 32 · Lost to Karol Kucera
- Q🇸🇰Tomas CatarRound of 32 · Lost to Stefano Cobolli
- 🇮🇹Vincenzo SantopadreRound of 32 · Lost to Jiri Novak