Florence 1980
Adriano Panatta won the title, beating Raul Ramirez 6–2 2–6 6–4 in the final.
Main draw 32 players
- 1🇦🇷Jose Luis ClercQuarterfinals · Lost to Adriano Panatta
- 2🇲🇽Raul RamirezFinal · Lost to Adriano Panatta
- 3🇮🇹Gianni OcleppoSemifinals · Lost to Adriano Panatta
- 4🇦🇺John AlexanderQuarterfinals · Lost to Phil Dent
- 5🇦🇺Phil DentSemifinals · Lost to Raul Ramirez
- 6🇮🇹Adriano PanattaFinal · Champion
- 7🇫🇷Jean Francois CaujolleQuarterfinals · Lost to Raul Ramirez
- 🇸🇪Stefan SimonssonQuarterfinals · Lost to Gianni Ocleppo
- LL🇪🇸Antonio MunozRound of 16 · Lost to Stefan Simonsson
- 🇮🇹Antonio ZugarelliRound of 16 · Lost to Gianni Ocleppo
- 🇫🇷Bernard FritzRound of 16 · Lost to Raul Ramirez
- 🇫🇷Gilles MorettonRound of 16 · Lost to Phil Dent
- 🇨🇿Jiri HrebecRound of 16 · Lost to Adriano Panatta
- Q🇭🇷Marko OstojaRound of 16 · Lost to John Alexander
- 🇮🇹Paolo BertolucciRound of 16 · Lost to Jose Luis Clerc
- 🇦🇺Syd BallRound of 16 · Lost to Jean Francois Caujolle
- 🇩🇪Andreas MaurerRound of 32 · Lost to Stefan Simonsson
- 🇨🇱Belus PrajouxRound of 32 · Lost to Gilles Moretton
- 🇦🇺Brad DrewettRound of 32 · Lost to Bernard Fritz
- 🇦🇺Chris KachelRound of 32 · Lost to Jose Luis Clerc
- 🇫🇷Christophe FreyssRound of 32 · Lost to Phil Dent
- 🇮🇹Fabrizio FanucciRound of 32 · Lost to Syd Ball
- Q🇫🇷Gregoire RafaitinRound of 32 · Lost to Paolo Bertolucci
- Q🇦🇷Gustavo GuerreroRound of 32 · Lost to John Alexander
- 🇨🇴Ivan MolinaRound of 32 · Lost to Marko Ostoja
- 🇧🇷Joao SoaresRound of 32 · Lost to Antonio Munoz
- 🇺🇾Jose Luis DamianiRound of 32 · Lost to Gianni Ocleppo
- 🇺🇸Michael GrantRound of 32 · Lost to Raul Ramirez
- 🇫🇷Patrick ProisyRound of 32 · Lost to Antonio Zugarelli
- 🇮🇹Patrizio ParriniRound of 32 · Lost to Jean Francois Caujolle
- Q🇪🇨Ricardo YcazaRound of 32 · Lost to Jiri Hrebec
- 🇦🇺Warren MaherRound of 32 · Lost to Adriano Panatta