2018 Rakuten Japan Open Tennis Championships

The 2018 Rakuten Japan Open Tennis Championships was a men's tennis tournament played on indoor hard courts. It was the 45th edition of the Japan Open, and part of the 500 Series of the 2018 ATP World Tour. It was held at the Musashino Forest Sport Plaza in Tokyo, Japan, from October 1 through October 7, 2018. Unseeded Daniil Medvedev, who entered the main draw as a qualifier, won the singles title.

2018 Rakuten Japan Open Tennis Championships
Date	1–7 October
Edition	45th
Category	ATP World Tour 500
Draw	32S/16D
Surface	Hard / indoor
Location	Tokyo, Japan
Venue	Musashino Forest Sport Plaza
Champions
Singles
Daniil Medvedev
Doubles
Ben McLachlan / Jan-Lennard Struff

Points and prize money

Point distribution

Event	W	F	SF	QF	Round of 16	Round of 32	Q	Q2	Q1
Singles[1]	500	300	180	90	45	0	20	10	0
Doubles[1]					0	—	45	25	0

Prize money

Event	W	F	SF	QF	Round of 16	Round of 32	Q2	Q1
Singles	$384,120	$188,315	$94,755	$48,195	$25,025	$13,200	$2,920	$1,490
Doubles	$115,650	$65,620	$28,400	$14,580	$7,540	—	—	—

Singles main-draw entrants

Seeds

Country	Player	Rank1	Seed
CRO	Marin Čilić	5	1
RSA	Kevin Anderson	9	2
JPN	Kei Nishikori	12	3
ARG	Diego Schwartzman	14	4
GRE	Stefanos Tsitsipas	15	5
CAN	Milos Raonic	20	6
KOR	Chung Hyeon	23	7
FRA	Richard Gasquet	25	8

• ¹ Rankings are as of September 24, 2018.

Other entrants

The following players received wildcards into the singles main draw:

• Taro Daniel
• Yoshihito Nishioka
• Yūichi Sugita

The following player received entry as a special exempt:

• Taylor Fritz

The following players received entry from the qualifying draw:

• Martin Kližan
• Denis Kudla
• Daniil Medvedev
• Yosuke Watanuki

Withdrawals

Before the tournament

• David Goffin → replaced by Matthew Ebden
• Lucas Pouille → replaced by Jan-Lennard Struff

Doubles main-draw entrants

Seeds

Country	Player	Country	Player	Rank1	Seed
FIN	Henri Kontinen	AUS	John Peers	15	1
GBR	Jamie Murray	BRA	Bruno Soares	23	2
RSA	Raven Klaasen	NZL	Michael Venus	34	3
JPN	Ben McLachlan	GER	Jan-Lennard Struff	50	4

• Rankings are as of September 24, 2018.

Other entrants

The following pairs received wildcards into the doubles main draw:

• Yoshihito Nishioka / Kaito Uesugi
• Joe Salisbury / Yasutaka Uchiyama

The following pair received entry from the qualifying draw:

• Fabrice Martin / Gilles Simon

Finals

Singles

Main article: 2018 Rakuten Japan Open Tennis Championships – Singles

• Daniil Medvedev defeated Kei Nishikori 6–2, 6–4

Doubles

Main article: 2018 Rakuten Japan Open Tennis Championships – Doubles

• Ben McLachlan / Jan-Lennard Struff defeated Raven Klaasen / Michael Venus 6–4, 7–5