Philadelphia WCT 1978
Jimmy Connors won the title, beating Roscoe Tanner 6–2 6–4 6–3 in the final.
Main draw 48 players
- 1🇺🇸Jimmy ConnorsFinal · Champion
- 2🇸🇪Bjorn BorgQuarterfinals · Lost to Roscoe Tanner
- 3🇺🇸Brian GottfriedSemifinals · Lost to Jimmy Connors
- 4🇺🇸Vitas GerulaitisRound of 16 · Lost to Sandy Mayer
- 5🇪🇸Manuel OrantesRound of 16 · Lost to John McEnroe
- 6🇺🇸Eddie DibbsSemifinals · Lost to Roscoe Tanner
- 7🇲🇽Raul RamirezQuarterfinals · Lost to Jimmy Connors
- 8🇷🇴Ilie NastaseRound of 16 · Lost to Roscoe Tanner
- 9🇺🇸Dick StocktonRound of 64 · Lost to Tim Gullikson
- 10🇺🇸Roscoe TannerFinal · Lost to Jimmy Connors
- 11🇮🇹Corrado BarazzuttiRound of 64 · Lost to Peter Fleming
- 12🇦🇺Ken RosewallRound of 16 · Lost to Raul Ramirez
- 13🇵🇱Wojtek FibakRound of 16 · Lost to Brian Gottfried
- 14🇺🇸Harold SolomonRound of 16 · Lost to Eddie Dibbs
- 15🇺🇸Sandy MayerQuarterfinals · Lost to Eddie Dibbs
- 16🇺🇸John McEnroeQuarterfinals · Lost to Brian Gottfried
- 🇬🇧Buster C MottramRound of 16 · Lost to Jimmy Connors
- 🇺🇸Peter FlemingRound of 16 · Lost to Bjorn Borg
- 🇮🇹Adriano PanattaRound of 32 · Lost to Jimmy Connors
- 🇮🇹Antonio ZugarelliRound of 32 · Lost to Harold Solomon
- 🇭🇺Balazs TaroczyRound of 32 · Lost to Ken Rosewall
- 🇿🇦Frew McmillanRound of 32 · Lost to Manuel Orantes
- 🇺🇸Jeff BorowiakRound of 32 · Lost to Vitas Gerulaitis
- 🇬🇧Mark CoxRound of 32 · Lost to Ilie Nastase
- 🇺🇸Marty RiessenRound of 32 · Lost to Brian Gottfried
- 🇺🇸Mike CahillRound of 32 · Lost to Peter Fleming
- 🇿🇦Raymond MooreRound of 32 · Lost to Raul Ramirez
- 🇦🇺Ross CaseRound of 32 · Lost to Sandy Mayer
- 🇺🇸Terry MoorRound of 32 · Lost to Eddie Dibbs
- 🇺🇸Tim GulliksonRound of 32 · Lost to Buster C Mottram
- 🇺🇸Tom GulliksonRound of 32 · Lost to John McEnroe
- 🇳🇱Tom OkkerRound of 32 · Lost to Bjorn Borg
- 🇺🇸Van WinitskyRound of 32 · Lost to Wojtek Fibak
- 🇭🇷Zeljko FranulovicRound of 32 · Lost to Roscoe Tanner
- 🇺🇸Bill ScanlonRound of 64 · Lost to Tom Okker
- 🇿🇦Bob HewittRound of 64 · Lost to Eddie Dibbs
- 🇺🇸Butch WaltsRound of 64 · Lost to John McEnroe
- 🇿🇦Cliff DrysdaleRound of 64 · Lost to Jimmy Connors
- 🇦🇺Dick CrealyRound of 64 · Lost to Balazs Taroczy
- 🇺🇸Hank PfisterRound of 64 · Lost to Antonio Zugarelli
- 🇨🇿Jan KodesRound of 64 · Lost to Sandy Mayer
- Q🇺🇸Jim McmanusRound of 64 · Lost to Van Winitsky
- 🇨🇿Jiri HrebecRound of 64 · Lost to Raymond Moore
- 🇦🇺John AlexanderRound of 64 · Lost to Marty Riessen
- 🇺🇸Mike FishbachRound of 64 · Lost to Vitas Gerulaitis
- 🇺🇸Richard MeyerRound of 64 · Lost to Manuel Orantes
- 🇦🇺Syd BallRound of 64 · Lost to Roscoe Tanner
- Q🇺🇸Tom LeonardRound of 64 · Lost to Mark Cox