2018 Monte-Carlo Masters
Date	April 15 – 22
Edition	112th
Category	Masters 1000
Draw	56S / 24D
Prize money	€4,273,775
Surface	Clay
Location	Roquebrune-Cap-Martin, France (billed as Monte Carlo, Monaco)
Venue	Monte Carlo Country Club
Champions
Singles
Rafael Nadal
Doubles
Bob Bryan / Mike Bryan
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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.^[1]

Singles main-draw entrants

Seeds

Country	Player	Rank1	Seed
ESP	Rafael Nadal	1	1
CRO	Marin Čilić	3	2
GER	Alexander Zverev	4	3
BUL	Grigor Dimitrov	5	4
AUT	Dominic Thiem	7	5
BEL	David Goffin	10	6
FRA	Lucas Pouille	11	7
ESP	Pablo Carreño Busta	12	8
SRB	Novak Djokovic	13	9
ARG	Diego Schwartzman	15	10
ESP	Roberto Bautista Agut	17	11
CZE	Tomáš Berdych	18	12
ITA	Fabio Fognini	20	13
CAN	Milos Raonic	22	14
ESP	Albert Ramos Viñolas	23	15
FRA	Adrian Mannarino	25	16

• 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

Doubles main-draw entrants

Seeds

Country	Player	Country	Player	Rank1	Seed
POL	Łukasz Kubot	BRA	Marcelo Melo	2	1
FIN	Henri Kontinen	AUS	John Peers	9	2
AUT	Oliver Marach	CRO	Mate Pavić	9	3
USA	Bob Bryan	USA	Mike Bryan	14	4
FRA	Pierre-Hugues Herbert	FRA	Nicolas Mahut	22	5
NED	Jean-Julien Rojer	ROU	Horia Tecău	23	6
GBR	Jamie Murray	BRA	Bruno Soares	29	7
CRO	Ivan Dodig	USA	Rajeev Ram	37	8

• 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

Champions

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.