Montreal / Toronto 1978
Eddie Dibbs won the title, beating Jose Luis Clerc 5–7 6–4 6–1 in the final.
Main draw 48 players
- 1🇺🇸Eddie DibbsFinal · Champion
- 2🇺🇸Brian GottfriedSemifinals · Lost to Jose Luis Clerc
- 3🇪🇸Manuel OrantesRound of 32 · Lost to Paul Kronk
- 4🇲🇽Raul RamirezQuarterfinals · Lost to Chris Lewis
- 5🇦🇺John AlexanderRound of 32 · Lost to Jeff Borowiak
- 6🇵🇱Wojtek FibakRound of 32 · Lost to Ivan Molina
- 7🇺🇸John McEnroeQuarterfinals · Lost to Eddie Dibbs
- 8🇪🇸Jose HiguerasRound of 32 · Lost to Colin Dowdeswell
- 9🇨🇱Jaime FillolRound of 32 · Lost to Tom Okker
- 10🇮🇹Adriano PanattaRound of 32 · Lost to Heinz Gunthardt
- 11🇺🇸Stan SmithRound of 32 · Lost to Kjell Johansson
- 12🇭🇺Balazs TaroczyQuarterfinals · Lost to Jose Luis Clerc
- 13🇦🇷Jose Luis ClercFinal · Lost to Eddie Dibbs
- 14🇳🇿Chris LewisSemifinals · Lost to Eddie Dibbs
- 15🇨🇱Hans GildemeisterRound of 16 · Lost to Ivan Molina
- 16🇨🇿Vladimir ZednikRound of 32 · Lost to Colin Dibley
- 🇨🇴Ivan MolinaQuarterfinals · Lost to Brian Gottfried
- 🇦🇺Colin DibleyRound of 16 · Lost to Raul Ramirez
- 🇬🇧Colin DowdeswellRound of 16 · Lost to Jose Luis Clerc
- 🇨🇭Heinz GunthardtRound of 16 · Lost to John McEnroe
- 🇺🇸Jeff BorowiakRound of 16 · Lost to Chris Lewis
- 🇸🇪Kjell JohanssonRound of 16 · Lost to Eddie Dibbs
- 🇦🇺Paul KronkRound of 16 · Lost to Balazs Taroczy
- 🇳🇱Tom OkkerRound of 16 · Lost to Brian Gottfried
- Q🇦🇺Bill LloydRound of 32 · Lost to Chris Lewis
- 🇿🇦Bob HewittRound of 32 · Lost to John McEnroe
- 🇺🇸Butch SeewagenRound of 32 · Lost to Hans Gildemeister
- 🇦🇺Cliff LetcherRound of 32 · Lost to Balazs Taroczy
- 🇨🇦Greg HalderRound of 32 · Lost to Brian Gottfried
- 🇺🇸Pat DupreRound of 32 · Lost to Raul Ramirez
- 🇺🇸Peter PearsonRound of 32 · Lost to Jose Luis Clerc
- 🇨🇦Rejean GenoisRound of 32 · Lost to Eddie Dibbs
- QIRIAli MadaniRound of 64 · Lost to Brian Gottfried
- Q🇨🇱Alvaro FillolRound of 64 · Lost to Colin Dibley
- Q🇨🇱Belus PrajouxRound of 64 · Lost to Jaime Fillol
- 🇫🇷Eric DeblickerRound of 64 · Lost to Adriano Panatta
- 🇦🇹Hans KaryRound of 64 · Lost to Jose Luis Clerc
- 🇮🇹Paolo BertolucciRound of 64 · Lost to Stan Smith
- 🇨🇱Patricio CornejoRound of 64 · Lost to Paul Kronk
- Q🇨🇱Patricio Rodriguez ChiRound of 64 · Lost to John McEnroe
- 🇦🇺Phil DentRound of 64 · Lost to Ivan Molina
- 🇨🇦Robert BettauerRound of 64 · Lost to Chris Lewis
- Q🇮🇹Roberto LombardiRound of 64 · Lost to Jose Higueras
- 🇬🇧Robin DrysdaleRound of 64 · Lost to Rejean Genois
- 🇨🇿Tomas SmidRound of 64 · Lost to Hans Gildemeister
- 🇨🇦Welry FritzRound of 64 · Lost to Raul Ramirez
- 🇫🇷Yannick NoahRound of 64 · Lost to John Alexander
- 🇭🇷Zeljko FranulovicRound of 64 · Lost to Balazs Taroczy