Boston 1981
Jose Luis Clerc won the title, beating Hans Gildemeister 0–6 6–2 6–2 in the final.
Main draw 64 players
- 1🇦🇷Jose Luis ClercFinal · Champion
- 2🇺🇸Harold SolomonRound of 64 · Lost to John Alexander
- 3🇺🇸Eliot TeltscherSemifinals · Lost to Jose Luis Clerc
- 4🇺🇸Eddie DibbsRound of 32 · Lost to Andres Gomez
- 5🇪🇸Jose HiguerasRound of 32 · Lost to Jay Lapidus
- 6🇺🇸Mel PurcellRound of 64 · Lost to Rick Fagel
- 7🇺🇸Sammy Giammalva JrRound of 64 · Lost to Ferdi Taygan
- 8🇺🇸Terry MoorRound of 64 · Lost to Bernard Fritz
- 9🇮🇹Corrado BarazzuttiRound of 32 · Lost to Jaime Fillol
- 10🇺🇾Jose Luis DamianiQuarterfinals · Lost to Bernard Fritz
- 11🇫🇷Pascal PortesRound of 64 · Lost to George Hardie
- 12🇪🇨Ricardo YcazaRound of 16 · Lost to Manuel Orantes
- 13🇨🇱Hans GildemeisterFinal · Lost to Jose Luis Clerc
- 14🇦🇷Ricardo CanoQuarterfinals · Lost to Eliot Teltscher
- 15🇲🇽Raul RamirezRound of 64 · Lost to Pedro Rebolledo
- 16🇺🇸Vincent Van PattenRound of 16 · Lost to Eliot Teltscher
- 🇫🇷Bernard FritzSemifinals · Lost to Hans Gildemeister
- 🇪🇸Angel GimenezQuarterfinals · Lost to Hans Gildemeister
- 🇪🇸Manuel OrantesQuarterfinals · Lost to Jose Luis Clerc
- 🇪🇨Andres GomezRound of 16 · Lost to Jose Luis Damiani
- 🇦🇺Charlie FancuttRound of 16 · Lost to Bernard Fritz
- 🇨🇱Jaime FillolRound of 16 · Lost to Jose Luis Clerc
- 🇺🇸Jay LapidusRound of 16 · Lost to Angel Gimenez
- 🇦🇺John AlexanderRound of 16 · Lost to Hans Gildemeister
- 🇨🇱Juan NunezRound of 16 · Lost to Ricardo Cano
- 🇨🇴Alvaro BetancurRound of 32 · Lost to Ricardo Ycaza
- 🇨🇱Belus PrajouxRound of 32 · Lost to Ricardo Cano
- 🇦🇺Brad DrewettRound of 32 · Lost to John Alexander
- 🇺🇸Chris MayotteRound of 32 · Lost to Eliot Teltscher
- 🇺🇾Diego PerezRound of 32 · Lost to Jose Luis Clerc
- 🇺🇸Ferdi TayganRound of 32 · Lost to Manuel Orantes
- 🇺🇸George HardieRound of 32 · Lost to Charlie Fancutt
- 🇺🇸Jim Delaney#350Round of 32 · Lost to Vincent Van Patten
- 🇺🇸Mike LeachRound of 32 · Lost to Bernard Fritz
- 🇺🇸Nick SavianoRound of 32 · Lost to Hans Gildemeister
- 🇨🇱Pedro RebolledoRound of 32 · Lost to Angel Gimenez
- 🇺🇸Rick FagelRound of 32 · Lost to Juan Nunez
- 🇺🇸Van WinitskyRound of 32 · Lost to Jose Luis Damiani
- 🇨🇱Alvaro FillolRound of 64 · Lost to Vincent Van Patten
- 🇮🇳Anand AmritrajRound of 64 · Lost to Belus Prajoux
- 🇺🇸Billy MartinRound of 64 · Lost to Mike Leach
- 🇺🇸Charles Buzz StrodeRound of 64 · Lost to Jose Luis Damiani
- 🇫🇷Christophe FreyssRound of 64 · Lost to Jaime Fillol
- 🇺🇸Craig EdwardsRound of 64 · Lost to Hans Gildemeister
- 🇺🇸Craig WittusRound of 64 · Lost to Angel Gimenez
- 🇿🇦Deon JoubertRound of 64 · Lost to Juan Nunez
- 🇿🇦Eddie EdwardsRound of 64 · Lost to Van Winitsky
- 🇺🇸Erik Van DillenRound of 64 · Lost to Corrado Barazzutti
- 🇦🇷Fernando Dalla FontanaRound of 64 · Lost to Diego Perez
- 🇵🇪Fernando MaynettoRound of 64 · Lost to Jose Higueras
- 🇪🇸Gabriel UrpiRound of 64 · Lost to Jim Delaney
- 🇫🇷Gilles MorettonRound of 64 · Lost to Charlie Fancutt
- 🇺🇸Jim GurfeinRound of 64 · Lost to Jay Lapidus
- 🇺🇸John HayesRound of 64 · Lost to Eddie Dibbs
- 🇪🇸Jose Lopez MaesoRound of 64 · Lost to Jose Luis Clerc
- 🇧🇷Marcos HocevarRound of 64 · Lost to Brad Drewett
- 🇺🇸Morris Skip StrodeRound of 64 · Lost to Nick Saviano
- 🇨🇿Pavel SlozilRound of 64 · Lost to Ricardo Cano
- 🇺🇸Robert Vant HofRound of 64 · Lost to Chris Mayotte
- 🇺🇸Ron HightowerRound of 64 · Lost to Eliot Teltscher
- 🇮🇳Sashi MenonRound of 64 · Lost to Manuel Orantes
- 🇨🇿Stanislav BirnerRound of 64 · Lost to Andres Gomez
- 🇺🇸Todd LundyRound of 64 · Lost to Ricardo Ycaza
- 🇺🇸Tom CainRound of 64 · Lost to Alvaro Betancur