Quito 2018
Roberto Carballes Baena won the title, beating Albert Ramos 6–3 4–6 6–4 in the final.
Main draw 28 players
- 1🇪🇸Pablo Carreno Busta#77Round of 16 · Lost to Andrej Martin
- 2🇪🇸Albert RamosFinal · Lost to Roberto Carballes Baena
- 3🇫🇷Gael MonfilsQuarterfinals · Lost to Thiago Monteiro
- 4🇮🇹Paolo LorenziRound of 16 · Lost to Roberto Carballes Baena
- 5🇦🇷Horacio ZeballosRound of 32 · Lost to Thiago Monteiro
- 6DOMVictor EstrellaRound of 16 · Lost to Gerald Melzer
- 7🇭🇷Ivo KarlovicRound of 16 · Lost to Corentin Moutet
- 8🇨🇱Nicolas JarryQuarterfinals · Lost to Roberto Carballes Baena
- Q🇪🇸Roberto Carballes Baena#266Final · Champion
- Q🇸🇰Andrej Martin#364Semifinals · Lost to Roberto Carballes Baena
- 🇧🇷Thiago Monteiro#225Semifinals · Lost to Albert Ramos
- WC🇫🇷Corentin Moutet#108Quarterfinals · Lost to Andrej Martin
- 🇦🇹Gerald MelzerQuarterfinals · Lost to Albert Ramos
- LL🇮🇹Alessandro GiannessiRound of 16 · Lost to Thiago Monteiro
- 🇳🇴Casper Ruud#18Round of 16 · Lost to Gael Monfils
- WC🇪🇨Roberto QuirozRound of 16 · Lost to Albert Ramos
- 🇮🇹Stefano Travaglia#177Round of 16 · Lost to Nicolas Jarry
- 🇪🇸Adrian Menendez MaceirasRound of 32 · Lost to Corentin Moutet
- 🇦🇷Carlos BerlocqRound of 32 · Lost to Casper Ruud
- 🇲🇽Ernesto EscobedoRound of 32 · Lost to Ivo Karlovic
- Q🇦🇷Facundo BagnisRound of 32 · Lost to Nicolas Jarry
- Q🇮🇹Federico GaioRound of 32 · Lost to Roberto Carballes Baena
- 🇮🇹Marco Cecchinato#173Round of 32 · Lost to Gerald Melzer
- PR🇪🇸Pablo AndujarRound of 32 · Lost to Stefano Travaglia
- 🇨🇦Peter PolanskyRound of 32 · Lost to Alessandro Giannessi
- 🇧🇷Rogerio Dutra SilvaRound of 32 · Lost to Andrej Martin
- 🇧🇷Thomaz BellucciRound of 32 · Lost to Victor Estrella
- 🇩🇪Yannick Hanfmann#67Round of 32 · Lost to Roberto Quiroz