Philadelphia 1990
Pete Sampras won the title, beating Andres Gomez 7–6 7–5 6–2 in the final.
Main draw 48 players
- 1🇺🇸John McEnroeRound of 32 · Lost to Richey Reneberg
- 2🇺🇸Brad GilbertRound of 16 · Lost to Paul Haarhuis
- 3🇺🇸Andre AgassiRound of 16 · Lost to Pete Sampras
- 4🇺🇸Jay BergerQuarterfinals · Lost to Petr Korda
- 5🇺🇸Tim MayotteQuarterfinals · Lost to Pete Sampras
- 6🇷🇺Andrei ChesnokovRound of 32 · Lost to Petr Korda
- 7🇪🇨Andres GomezFinal · Lost to Pete Sampras
- 8🇺🇸Jim CourierQuarterfinals · Lost to Mark Kratzmann
- 9🇺🇸Kevin CurrenRound of 16 · Lost to Andres Gomez
- 10🇿🇦Christo Van RensburgRound of 16 · Lost to Jim Courier
- 11🇵🇪Jaime YzagaRound of 16 · Lost to Petr Korda
- 12🇺🇸David WheatonRound of 32 · Lost to Glenn Layendecker
- 13🇺🇸Pete SamprasFinal · Champion
- 14🇦🇺Wally MasurRound of 16 · Lost to Jay Berger
- 15🇺🇸Scott DavisRound of 32 · Lost to Mark Kratzmann
- 16🇸🇪Mikael PernforsRound of 32 · Lost to Paul Haarhuis
- Q🇦🇺Mark KratzmannSemifinals · Lost to Pete Sampras
- 🇨🇿Petr KordaSemifinals · Lost to Andres Gomez
- 🇳🇱Paul HaarhuisQuarterfinals · Lost to Andres Gomez
- 🇺🇸Glenn LayendeckerRound of 16 · Lost to Tim Mayotte
- 🇺🇸Richey RenebergRound of 16 · Lost to Mark Kratzmann
- 🇨🇦Andrew SznajderRound of 32 · Lost to Andres Gomez
- Q🇺🇸Chris GarnerRound of 32 · Lost to Jaime Yzaga
- 🇺🇸Dan GoldieRound of 32 · Lost to Wally Masur
- 🇺🇸Derrick RostagnoRound of 32 · Lost to Tim Mayotte
- 🇫🇷Jean Philippe FleurianRound of 32 · Lost to Andre Agassi
- 🇳🇿Kelly EverndenRound of 32 · Lost to Jim Courier
- 🇳🇱Michiel SchapersRound of 32 · Lost to Jay Berger
- 🇨🇿Milan SrejberRound of 32 · Lost to Pete Sampras
- 🇺🇸Paul AnnaconeRound of 32 · Lost to Christo Van Rensburg
- 🇮🇳Ramesh KrishnanRound of 32 · Lost to Kevin Curren
- Q🇺🇸Tim WilkisonRound of 32 · Lost to Brad Gilbert
- Q🇺🇸Brad PearceRound of 64 · Lost to Mark Kratzmann
- Q🇺🇸Dan CassidyRound of 64 · Lost to Chris Garner
- 🇦🇺Darren CahillRound of 64 · Lost to Michiel Schapers
- 🇩🇪Jens WoehrmannRound of 64 · Lost to Milan Srejber
- 🇫🇷Jerome PotierRound of 64 · Lost to Paul Haarhuis
- 🇺🇸Jim PughRound of 64 · Lost to Richey Reneberg
- 🇺🇸Jimmy BrownRound of 64 · Lost to Kelly Evernden
- Q🇦🇺John FitzgeraldRound of 64 · Lost to Andrew Sznajder
- WC🇺🇸Ken FlachRound of 64 · Lost to Jean Philippe Fleurian
- 🇺🇸Lawson DuncanRound of 64 · Lost to Petr Korda
- WC🇺🇸Malivai WashingtonRound of 64 · Lost to Derrick Rostagno
- 🇸🇪Nicklas KroonRound of 64 · Lost to Paul Annacone
- 🇺🇸Paul ChamberlinRound of 64 · Lost to Dan Goldie
- WC🇸🇪Peter LundgrenRound of 64 · Lost to Glenn Layendecker
- WC🇺🇸Rick LeachRound of 64 · Lost to Tim Wilkison
- 🇺🇸Todd WitskenRound of 64 · Lost to Ramesh Krishnan