Mexico City 1981
Jaime Fillol won the title, beating David Carter 6–2 6–3 in the final.
Main draw 32 players
- 1🇺🇸Richard MeyerRound of 32 · Lost to Ben Mckown
- 2🇦🇺Paul KronkRound of 16 · Lost to Ross Case
- 3🇺🇸John HayesQuarterfinals · Lost to David Carter
- 4🇩🇪Klaus EberhardQuarterfinals · Lost to Adolfo Gonzalez
- 5🇺🇸Dick StocktonRound of 16 · Lost to David Carter
- 6🇦🇺John AlexanderRound of 16 · Lost to Jaime Fillol
- 7🇺🇸Chris MayotteRound of 16 · Lost to Steve Krulevitz
- 🇨🇱Jaime FillolFinal · Champion
- 🇦🇺David CarterFinal · Lost to Jaime Fillol
- 🇲🇽Adolfo GonzalezSemifinals · Lost to Jaime Fillol
- 🇺🇸Steve KrulevitzSemifinals · Lost to David Carter
- 🇦🇺Ross CaseQuarterfinals · Lost to Jaime Fillol
- 🇺🇸Tom CainQuarterfinals · Lost to Steve Krulevitz
- 🇺🇸Ben MckownRound of 16 · Lost to Tom Cain
- 🇦🇷Guillermo AuboneRound of 16 · Lost to Klaus Eberhard
- 🇺🇸Jimmy AriasRound of 16 · Lost to Adolfo Gonzalez
- 🇺🇸Marty DavisRound of 16 · Lost to John Hayes
- 🇨🇴Alejandro CortesRound of 32 · Lost to Dick Stockton
- 🇨🇱Alvaro FillolRound of 32 · Lost to Ross Case
- 🇺🇸Billy MartinRound of 32 · Lost to John Hayes
- 🇺🇸Bruce FoxworthRound of 32 · Lost to Klaus Eberhard
- 🇦🇺Cliff LetcherRound of 32 · Lost to Adolfo Gonzalez
- 🇲🇽Emilio MontanoRound of 32 · Lost to Paul Kronk
- 🇲🇽Javier OrdazRound of 32 · Lost to Jimmy Arias
- 🇲🇽Jorge LozanoRound of 32 · Lost to Steve Krulevitz
- 🇩🇪Karl MeilerRound of 32 · Lost to John Alexander
- 🇫🇮Leo PalinRound of 32 · Lost to Tom Cain
- 🇺🇸Mike EstepRound of 32 · Lost to Guillermo Aubone
- 🇵🇪Pablo ArrayaRound of 32 · Lost to David Carter
- 🇩🇪Peter SpangRound of 32 · Lost to Jaime Fillol
- 🇦🇺Syd BallRound of 32 · Lost to Marty Davis
- 🇩🇪Wolfgang PoppRound of 32 · Lost to Chris Mayotte