Maui 1978
Bill Scanlon won the title, beating Peter Fleming 6–2 6–0 in the final.
Main draw 32 players
- 1🇲🇽Raul RamirezSemifinals · Lost to Peter Fleming
- 2🇺🇸Harold SolomonQuarterfinals · Lost to Bill Scanlon
- 3🇺🇸Roscoe TannerQuarterfinals · Lost to John McEnroe
- 4🇺🇸Sandy MayerQuarterfinals · Lost to Peter Fleming
- 5🇺🇸John McEnroeSemifinals · Lost to Bill Scanlon
- 6🇦🇺John NewcombeRound of 16 · Lost to Peter Fleming
- 7🇺🇸Tim GulliksonQuarterfinals · Lost to Raul Ramirez
- LL🇺🇸Bill ScanlonFinal · Champion
- 🇺🇸Peter FlemingFinal · Lost to Bill Scanlon
- 🇦🇺Allan StoneRound of 16 · Lost to Roscoe Tanner
- 🇺🇸Brian TeacherRound of 16 · Lost to John McEnroe
- 🇺🇸Eliot TeltscherRound of 16 · Lost to Raul Ramirez
- 🇺🇸Gene MayerRound of 16 · Lost to Bill Scanlon
- 🇺🇸Hank PfisterRound of 16 · Lost to Sandy Mayer
- 🇺🇸Pat DupreRound of 16 · Lost to Tim Gullikson
- 🇺🇸Tom GulliksonRound of 16 · Lost to Harold Solomon
- 🇿🇦Bernie MittonRound of 32 · Lost to Harold Solomon
- 🇺🇸Butch WaltsRound of 32 · Lost to Allan Stone
- 🇺🇸Charlie PasarellRound of 32 · Lost to Sandy Mayer
- 🇿🇦Cliff DrysdaleRound of 32 · Lost to Bill Scanlon
- 🇦🇺Cliff LetcherRound of 32 · Lost to Hank Pfister
- 🇦🇺Colin DibleyRound of 32 · Lost to Tom Gullikson
- Q🇺🇸Dick DellRound of 32 · Lost to Eliot Teltscher
- Q🇺🇸Jeff BorowiakRound of 32 · Lost to Gene Mayer
- Q🇫🇮Leo PalinRound of 32 · Lost to Peter Fleming
- 🇺🇸Mike CahillRound of 32 · Lost to Pat Dupre
- 🇺🇸Nick SavianoRound of 32 · Lost to Brian Teacher
- 🇮🇳Sashi MenonRound of 32 · Lost to John Newcombe
- 🇺🇸Terry MoorRound of 32 · Lost to Roscoe Tanner
- 🇺🇸Tom GormanRound of 32 · Lost to John McEnroe
- 🇮🇳Vijay AmritrajRound of 32 · Lost to Tim Gullikson
- Q🇺🇸Vincent Van PattenRound of 32 · Lost to Raul Ramirez