2018 Casino Admiral Trophy

The 2018 Casino Admiral Trophy was a professional tennis tournament played on clay courts. It was the first edition of the tournament which was part of the 2018 ATP Challenger Tour. It took place in Marbella, Spain between 26 and 31 March 2018.

Seeds

 * 1 Rankings are as of 19 March 2018.

Other entrants
The following players received wildcards into the singles main draw:
 * 🇪🇸 Alejandro Davidovich Fokina
 * 🇪🇸 Pedro Martínez
 * 🇦🇹 Jürgen Melzer
 * 🇦🇺 Alexei Popyrin

The following player received entry into the singles main draw as an alternate:
 * 🇪🇸 Enrique López Pérez

The following players received entry from the qualifying draw:
 * 🇦🇷 Pedro Cachin
 * 🇧🇪 Kimmer Coppejans
 * 🇨🇿 Lukáš Rosol
 * 🇦🇷 Marco Trungelliti

The following player received entry as a lucky loser:
 * 🇮🇳 Sumit Nagal

Singles

 * 🇮🇹 Stefano Travaglia def. 🇦🇷 Guido Andreozzi 6–3, 6–3.

Doubles

 * 🇦🇷 Guido Andreozzi / Ariel Behar def. 🇸🇰 Martin Kližan / 🇸🇰 Jozef Kovalík 6–3, 6–4.