2018 Ecuador Open Quito

The 2018 Ecuador Open Quito was an ATP men's tennis tournament played on outdoor clay courts. It was the 4th edition of the Ecuador Open Quito as part of the ATP World Tour 250 series of the 2018 ATP World Tour. It took place in Quito, Ecuador from 5 February through 11 February 2018. Unseeded Roberto Carballés Baena, who entered the main draw as a qualifier, won the singles title.

Seeds

 * 1 Rankings are as of January 29, 2018.

Other entrants
The following players received wildcards into the singles main draw:
 * 🇫🇷 Corentin Moutet
 * 🇪🇨 Roberto Quiroz
 * 🇪🇸 Tommy Robredo

The following players received entry using a protected ranking:
 * 🇪🇸 Pablo Andújar

The following players received entry from the qualifying draw:
 * 🇦🇷 Facundo Bagnis
 * 🇪🇸 Roberto Carballés Baena
 * 🇮🇹 Federico Gaio
 * 🇸🇰 Andrej Martin

The following player received entry as a lucky loser:
 * 🇮🇹 Alessandro Giannessi

Withdrawals

 * Before the tournament
 * 🇺🇦 Alexandr Dolgopolov → replaced by 🇳🇴 Casper Ruud
 * 🇦🇷 Nicolás Kicker → replaced by 🇨🇦 Peter Polansky
 * 🇪🇸 Tommy Robredo → replaced by 🇮🇹 Alessandro Giannessi
 * 🇺🇸 Tennys Sandgren → replaced by 🇮🇹 Stefano Travaglia

Seeds

 * 1 Rankings are as of January 29, 2018.

Other entrants
The following pairs received wildcards into the doubles main draw:
 * 🇫🇷 Dorian Descloix / 🇫🇷 Gaël Monfils
 * 🇪🇨 Gonzalo Escobar / 🇪🇨 Roberto Quiroz

The following pairs received entry as alternates:
 * 🇦🇷 Facundo Bagnis / 🇧🇷 João Souza
 * 🇮🇹 Federico Gaio / 🇸🇰 Andrej Martin
 * 🇵🇪 Sergio Galdós / 🇦🇹 Gerald Melzer

Withdrawals

 * Before the tournament
 * 🇦🇷 Carlos Berlocq (right shoulder injury)
 * 🇧🇷 Rogério Dutra Silva (enteritis)
 * 🇧🇷 André Sá (right calf strain)

Singles

 * 🇪🇸 Roberto Carballés Baena defeated 🇪🇸 Albert Ramos Viñolas, 6–3, 4–6, 6–4

Doubles

 * Nicolás Jarry / Hans Podlipnik-Castillo defeated 🇺🇸 Austin Krajicek / 🇺🇸 Jackson Withrow, 7–6(8–6), 6–3