2018 Monte-Carlo Masters

The 2018 Monte-Carlo Masters (also known as the Rolex Monte-Carlo Masters for sponsorship reasons) was a tennis tournament for male professional players that was played on outdoor clay courts. It was the 112th edition of the annual Monte Carlo Masters tournament, sponsored by Rolex for the tenth time. It took place at the Monte Carlo Country Club in Roquebrune-Cap-Martin, France (though billed as Monte Carlo, Monaco).

Points
Because the Monte Carlo Masters is the non-mandatory Masters 1000 event, special rules regarding points distribution are in place. The Monte Carlo Masters counts as one of a player's 500 level tournaments, while distributing Masters 1000 points.

Seeds

 * Rankings are as of April 9, 2018.

Other entrants
The following players received wildcards into the main draw:
 * 🇨🇦 Félix Auger-Aliassime
 * Lucas Catarina
 * 🇦🇺 Thanasi Kokkinakis
 * 🇫🇷 Gilles Simon

The following players received entry via the qualifying draw:
 * 🇮🇹 Marco Cecchinato
 * 🇫🇷 Jérémy Chardy
 * 🇫🇷 Pierre-Hugues Herbert
 * 🇧🇾 Ilya Ivashka
 * 🇷🇸 Dušan Lajović
 * 🇮🇹 Andreas Seppi
 * Stefanos Tsitsipas

The following players received entry as lucky losers:
 * 🇧🇦 Mirza Bašić
 * 🇩🇪 Florian Mayer
 * 🇪🇸 Guillermo García López

Withdrawals

 * Before the tournament
 * 🇪🇸 Pablo Carreño Busta → replaced by 🇪🇸 Guillermo García López
 * 🇺🇦 Aleksandr Dolgopolov → replaced by 🇧🇦 Mirza Bašić
 * 🇪🇸 David Ferrer → replaced by 🇦🇷 Guido Pella
 * 🇷🇸 Filip Krajinović → replaced by 🇩🇪 Florian Mayer
 * 🇦🇷 Leonardo Mayer → replaced by 🇭🇺 Márton Fucsovics
 * 🇫🇷 Gaël Monfils → replaced by 🇫🇷 Julien Benneteau
 * 🇫🇷 Jo-Wilfried Tsonga → replaced by 🇺🇸 Tennys Sandgren


 * During the tournament
 * 🇨🇦 Milos Raonic

Seeds

 * Rankings are as of April 9, 2018.

Other entrants
The following pairs received wildcards into the doubles main draw:
 * Romain Arneodo / 🇫🇷 Hugo Nys
 * 🇮🇹 Simone Bolelli / 🇮🇹 Fabio Fognini

The following pairs received entry as alternates:
 * 🇺🇸 James Cerretani / 🇮🇹 Andreas Seppi
 * 🇧🇦 Damir Džumhur / 🇵🇰 Aisam-ul-Haq Qureshi

Withdrawals

 * Before the tournament
 * 🇷🇸 Filip Krajinović
 * 🇨🇦 Milos Raonic
 * 🇷🇴 Horia Tecău
 * 🇪🇸 Fernando Verdasco


 * During the tournament
 * 🇧🇬 Grigor Dimitrov

Singles

 * 🇪🇸 Rafael Nadal def. 🇯🇵 Kei Nishikori, 6–3, 6–2

Doubles

 * 🇺🇸 Bob Bryan / 🇺🇸 Mike Bryan def. 🇦🇹 Oliver Marach / Mate Pavić, 7–6(7–5), 6–3.