Ljubljana CH 1990
Magnus Larsson won the title, beating Diego Nargiso 7–5 6–7 7–6 in the final.
Main draw 32 players
- 2🇨🇦Andrew SznajderRound of 16 · Lost to Massimo Cierro
- 3🇳🇱Mark KoevermansSemifinals · Lost to Diego Nargiso
- 4🇮🇹Omar CamporeseSemifinals · Lost to Magnus Larsson
- 5🇭🇷Bruno OresarRound of 16 · Lost to Bart Wuyts
- 6🇦🇷Christian MiniussiRound of 16 · Lost to Carlos Costa
- 7🇪🇸Fernando LunaRound of 16 · Lost to Diego Nargiso
- 8🇸🇪Magnus LarssonFinal · Champion
- 🇮🇹Diego NargisoFinal · Lost to Magnus Larsson
- 🇩🇪Andres VysandQuarterfinals · Lost to Magnus Larsson
- 🇧🇪Bart WuytsQuarterfinals · Lost to Omar Camporese
- 🇪🇸Carlos CostaQuarterfinals · Lost to Mark Koevermans
- 🇮🇹Massimo CierroQuarterfinals · Lost to Diego Nargiso
- WC🇸🇮Iztok BozicRound of 16 · Lost to Mark Koevermans
- 🇵🇹Joao Cunha SilvaRound of 16 · Lost to Magnus Larsson
- CUBMario TabaresRound of 16 · Lost to Omar Camporese
- 🇩🇪Paul VojtischekRound of 16 · Lost to Andres Vysand
- 🇩🇪Christian GeyerRound of 32 · Lost to Bart Wuyts
- 🇮🇹Cristiano CarattiRound of 32 · Lost to Iztok Bozic
- WC🇮🇹Francesco CancellottiRound of 32 · Lost to Mario Tabares
- 🇮🇹Gianluca PozziRound of 32 · Lost to Omar Camporese
- LL🇦🇹Gilbert SchallerRound of 32 · Lost to Paul Vojtischek
- WCYUGGregor BreznikRound of 32 · Lost to Andrew Sznajder
- Q🇪🇸Jose ClavetRound of 32 · Lost to Fernando Luna
- QCUBJuan PinoRound of 32 · Lost to Carlos Costa
- 🇸🇪Nicklas KultiRound of 32 · Lost to Bruno Oresar
- Q🇮🇹Nicola BrunoRound of 32 · Lost to Magnus Larsson
- 🇵🇹Nuno MarquesRound of 32 · Lost to Andres Vysand
- 🇮🇹Renzo FurlanRound of 32 · Lost to Mark Koevermans
- Q🇨🇿Richard VogelRound of 32 · Lost to Diego Nargiso
- WC🇭🇷Sasa HirszonRound of 32 · Lost to Massimo Cierro
- 🇮🇹Stefano PescosolidoRound of 32 · Lost to Joao Cunha Silva
- 🇳🇿Steve GuyRound of 32 · Lost to Christian Miniussi