Estoril Open 2018
Joao Sousa won the title, beating Frances Tiafoe 6–4 6–4 in the final.
Main draw 28 players
- 1🇿🇦Kevin AndersonRound of 16 · Lost to Stefanos Tsitsipas
- 2🇪🇸Pablo Carreno Busta#77Semifinals · Lost to Frances Tiafoe
- 3🇬🇧Kyle EdmundQuarterfinals · Lost to Joao Sousa
- 4🇱🇺Gilles MullerRound of 16 · Lost to Frances Tiafoe
- 5🇪🇸Albert RamosRound of 32 · Lost to Federico Delbonis
- 6🇳🇱Robin HaaseRound of 32 · Lost to Cameron Norrie
- 7🇦🇷Leonardo MayerRound of 32 · Lost to Nicolas Jarry
- 8🇷🇺Daniil Medvedev#5Round of 32 · Lost to Joao Sousa
- 🇵🇹Joao SousaFinal · Champion
- 🇺🇸Frances Tiafoe#8Final · Lost to Joao Sousa
- 🇬🇷Stefanos Tsitsipas#36Semifinals · Lost to Joao Sousa
- 🇨🇱Nicolas JarryQuarterfinals · Lost to Pablo Carreno Busta
- 🇪🇸Roberto Carballes Baena#266Quarterfinals · Lost to Stefanos Tsitsipas
- Q🇮🇹Simone BolelliQuarterfinals · Lost to Frances Tiafoe
- WC🇦🇺Alex de Minaur#9Round of 16 · Lost to Kyle Edmund
- 🇬🇧Cameron Norrie#53Round of 16 · Lost to Roberto Carballes Baena
- 🇦🇷Federico DelbonisRound of 16 · Lost to Simone Bolelli
- 🇦🇷Nicolas Kicker#336Round of 16 · Lost to Pablo Carreno Busta
- WC🇵🇹Pedro SousaRound of 16 · Lost to Joao Sousa
- Q🇪🇸Ricardo Ojeda LaraRound of 16 · Lost to Nicolas Jarry
- 🇺🇸Bjorn FratangeloRound of 32 · Lost to Roberto Carballes Baena
- WC🇵🇹Frederico Ferreira Silva#329Round of 32 · Lost to Ricardo Ojeda Lara
- 🇵🇹Gastao EliasRound of 32 · Lost to Alex de Minaur
- 🇫🇷Gilles SimonRound of 32 · Lost to Pedro Sousa
- Q🇵🇹Joao DominguesRound of 32 · Lost to Simone Bolelli
- PR🇪🇸Pablo AndujarRound of 32 · Lost to Stefanos Tsitsipas
- 🇺🇸Tennys SandgrenRound of 32 · Lost to Frances Tiafoe
- Q🇺🇸Tim SmyczekRound of 32 · Lost to Nicolas Kicker