2018 Rakuten Japan Open Tennis Championships
| 2018 Rakuten Japan Open Tennis Championships | |
|---|---|
| Date | 1–7 October |
| Edition | 45th |
| Category | ATP World Tour 500 |
| Draw | 32S/16D |
| Surface | Hard / outdoor |
| Location | Tokyo, Japan |
| 2017 Champions | |
| Singles | |
 David Goffin | |
| Doubles | |
 Ben McLachlan / Yasutaka Uchiyama | |
The 2018 Rakuten Japan Open Tennis Championships is an upcoming men's tennis tournament played on outdoor hard courts. It will be the 45th edition of the Japan Open, and part of the 500 Series of the 2018 ATP World Tour. It will be held at the Musashino Forest Sports Plaza in Tokyo, Japan, from October 1–7, 2018.
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:
The following player received entry as a special exempt:
The following players received entry from the qualifying draw:
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:
The following pair received entry from the qualifying draw:
Champions
Singles
vs.
Doubles
- / vs. /
References
- ^ a b "Rankings explained". atpworldtour.com. Retrieved 25 February 2013.