Swiss Indoors Basel 1978
Guillermo Vilas won the title, beating John McEnroe 6–3 5–7 7–5 6–4 in the final.
Main draw 32 players
- 1🇦🇷Guillermo VilasFinal · Champion
- 2🇺🇸John McEnroeFinal · Lost to Guillermo Vilas
- 3🇵🇱Wojtek FibakSemifinals · Lost to Guillermo Vilas
- 4🇬🇧John LloydRound of 32 · Lost to Raymond Moore
- 5🇺🇸Victor AmayaSemifinals · Lost to John McEnroe
- 6🇮🇳Vijay AmritrajRound of 16 · Lost to Rolf Gehring
- 7🇨🇿Vladimir ZednikRound of 32 · Lost to Patrice Dominguez
- 8🇩🇪Ulrich PinnerQuarterfinals · Lost to Wojtek Fibak
- 🇨🇭Heinz GunthardtQuarterfinals · Lost to John McEnroe
- 🇿🇦Raymond MooreQuarterfinals · Lost to Victor Amaya
- Q🇩🇪Rolf GehringQuarterfinals · Lost to Guillermo Vilas
- 🇪🇸Angel GimenezRound of 16 · Lost to Ulrich Pinner
- 🇫🇷Bernard FritzRound of 16 · Lost to John McEnroe
- 🇮🇹Gianni OcleppoRound of 16 · Lost to Victor Amaya
- 🇪🇬Ismail El ShafeiRound of 16 · Lost to Raymond Moore
- 🇳🇱Louk SandersRound of 16 · Lost to Guillermo Vilas
- 🇬🇧Mark CoxRound of 16 · Lost to Wojtek Fibak
- 🇫🇷Patrice DominguezRound of 16 · Lost to Heinz Gunthardt
- 🇮🇳Anand AmritrajRound of 32 · Lost to Rolf Gehring
- 🇺🇸Andrew PattisonRound of 32 · Lost to Bernard Fritz
- 🇺🇸Bruce MansonRound of 32 · Lost to John McEnroe
- 🇬🇧Colin DowdeswellRound of 32 · Lost to Mark Cox
- Q🇺🇸David SchneiderRound of 32 · Lost to Angel Gimenez
- 🇺🇸Dick BohrnstedtRound of 32 · Lost to Ulrich Pinner
- 🇷🇴Ion TiriacRound of 32 · Lost to Gianni Ocleppo
- 🇨🇭Ivan DupasquierRound of 32 · Lost to Guillermo Vilas
- 🇪🇸Javier SolerRound of 32 · Lost to Heinz Gunthardt
- 🇨🇿Jiri HrebecRound of 32 · Lost to Ismail El Shafei
- 🇨🇭Markus GunthardtRound of 32 · Lost to Victor Amaya
- Q🇳🇱Paul Van MinRound of 32 · Lost to Wojtek Fibak
- Q🇬🇧Rohun BevenRound of 32 · Lost to Vijay Amritraj
- 🇺🇸Trey WaltkeRound of 32 · Lost to Louk Sanders