# 2016 Rakuten Japan Open Tennis Championships – Singles

Stan Wawrinka was the defending champion, but withdrew before the tournament began after suffering a back injury.
Nick Kyrgios won the title, defeating David Goffin in the final, 4−6, 6−3, 7−5. This was his first ATP 500 level title and his third title overall in the 2016 ATP World Tour.

## Seeds

* Kei Nishikori (second round, retired)
* Gaël Monfils (semifinals)
* Tomáš Berdych (first round)
* Marin Čilić (semifinals)
* David Goffin (final)
* Nick Kyrgios (champion)
* Ivo Karlović (quarterfinals)
* Feliciano López (first round, retired)

## Draw
### Key

* Q = Qualifier
* WC = Wild card
* LL = Lucky loser
* Alt = Alternate
* SE = Special exempt
* PR = Protected ranking
* ITF = ITF entry
* JE = Junior exempt
* w/o = Walkover
* r = Retired
* d = Defaulted
* SR = Special ranking

### Finals

| Semifinals | Semifinals | Semifinals | Semifinals | Final | Final | Final | Final | Final |
| 5 | David Goffin | 7 | 6 | | | | | |
| 4 | Marin Čilić | 5 | 4 | | | | | |
| 4 | Marin Čilić | 5 | 4 | 5 | David Goffin | 6 | 3 | 5 |
| | | | | 6 | Nick Kyrgios | 4 | 6 | 7 |
| 6 | Nick Kyrgios | 6 | 6 | 6 | Nick Kyrgios | 4 | 6 | 7 |
| 2 | Gaël Monfils | 4 | 4 | | | | | |

### Top half

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Second round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals |
| 1 | K Nishikori | 4 | 6 | 6 | | | | | | | | | | | | | | |
| LL | D Young | 6 | 2 | 2 | 1 | K Nishikori | 4$^r$ | | | | | | | | | | | |
| | M Kližan | 6 | 3 | 3 | | J Sousa | 3 | | | | | | | | | | | |
| | J Sousa | 4 | 6 | 6 | | | | | | | J Sousa | 6 | 5 | 2 | | | | |
| | J Veselý | 3 | 6 | 6 | | | | | | 5 | D Goffin | 1 | 7 | 6 | | | | |
| | K Anderson | 6 | 0 | 4 | | J Veselý | 3 | 5 | | | | | | | | | | |
| WC | Y Nishioka | 5 | 2 | | 5 | D Goffin | 6 | 7 | | | | | | | | | | |
| 5 | D Goffin | 7 | 6 | | | | | | | | | | | | 5 | D Goffin | 7 | 6 |
| 4 | M Čilić | 6 | 4 | 6 | | | | | | | | | | | 4 | M Čilić | 5 | 4 |
| | B Paire | 0 | 6 | 3 | 4 | M Čilić | 4 | 7 | 7 | | | | | | | | | |
| Q | G Soeda | 7$^7$ | 3 | 3 | | F Verdasco | 6 | 5 | 5 | | | | | | | | | |
| | F Verdasco | 6$^2$ | 6 | 6 | | | | | | 4 | M Čilić | 7 | 6 | | | | | |
| PR | J Mónaco | 7$^7$ | 7$^7$ | | | | | | | PR | J Mónaco | 5 | 1 | | | | | |
| | T Fritz | 6$^2$ | 6$^5$ | | PR | J Mónaco | 7$^7$ | 6 | | | | | | | | | | |
| Q | J Duckworth | 6$^5$ | 7$^7$ | 4 | Q | J Duckworth | 6$^3$ | 3 | | | | | | | | | | |
| 8 | F López | 7$^7$ | 6$^4$ | 2$^r$ | | | | | | | | | | | | | | |

### Bottom half

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals |
| 6 | N Kyrgios | 7 | 6 | | | | | | | | | | | | | |
| Q | R Harrison | 5 | 2 | | 6 | N Kyrgios | w/o | | | | | | | | | |
| | S Robert | 2 | 1 | | Q | R Štěpánek | | | | | | | | | | |
| Q | R Štěpánek | 6 | 6 | | | | | | 6 | N Kyrgios | 6 | 6 | | | | |
| | M Granollers | 1 | 6 | 3 | | | | | | G Müller | 4 | 2 | | | | |
| | M Baghdatis | 6 | 3 | 6 | | M Baghdatis | 3 | 4 | | | | | | | | |
| | G Müller | 7$^9$ | 6 | | | G Müller | 6 | 6 | | | | | | | | |
| 3 | T Berdych | 6$^7$ | 1 | | | | | | | | | | 6 | N Kyrgios | 6 | 6 |
| 7 | I Karlović | 7$^8$ | 6$^6$ | 7$^7$ | | | | | | | | | 2 | G Monfils | 4 | 4 |
| | F Delbonis | 6$^6$ | 7$^8$ | 6$^5$ | 7 | I Karlović | 7$^{11}$ | 7$^7$ | | | | | | | | |
| PR | J Tipsarević | 6 | 6 | | PR | J Tipsarević | 6$^9$ | 6$^5$ | | | | | | | | |
| WC | T Daniel | 2 | 4 | | | | | | 7 | I Karlović | 6$^6$ | 6$^6$ | | | | |
| | G Simon | 7 | 4 | 6 | | | | | 2 | G Monfils | 7$^8$ | 7$^8$ | | | | |
| | P Kohlschreiber | 5 | 6 | 0 | | G Simon | 1 | 4 | | | | | | | | |
| WC | Y Sugita | 3 | 1 | | 2 | G Monfils | 6 | 6 | | | | | | | | |
| 2 | G Monfils | 6 | 6 | | | | | | | | | | | | | |

## Qualifying
### Seeds

* Mikhail Youzhny (first round)
* Daniel Evans (first round)
* Gastão Elias (first round)
* Donald Young (qualifying competition, Lucky loser)
* Jared Donaldson (first round)
* Radek Štěpánek (qualified)
* Vasek Pospisil (qualifying competition, retired)
* Ryan Harrison (qualified)

### Qualifiers

* James Duckworth
* Radek Štěpánek
* Go Soeda
* Ryan Harrison

### Lucky losers

* Donald Young

### Qualifying draw
#### First qualifier

| First round | First round | First round | First round | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition |
| 1 | Mikhail Youzhny | 2 | 2 | | | | |
| PR | Matthew Ebden | 6 | 6 | | | | |
| PR | Matthew Ebden | 6 | 6 | PR | Matthew Ebden | 2 | 2 |
| | | | | | James Duckworth | 6 | 6 |
| | James Duckworth | 7$^7$ | 6 | | James Duckworth | 6 | 6 |
| 5 | Jared Donaldson | 6$^5$ | 4 | | | | |

#### Second qualifier

| First round | First round | First round | First round | First round | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition |
| 2 | Daniel Evans | 3 | 6 | 4 | | | | | |
| WC | Akira Santillan | 6 | 4 | 6 | | | | | |
| WC | Akira Santillan | 6 | 4 | 6 | WC | Akira Santillan | 2 | 6 | 4 |
| | | | | | 6 | Radek Štěpánek | 6 | 3 | 6 |
| WC | Yosuke Watanuki | 4 | 4 | | 6 | Radek Štěpánek | 6 | 3 | 6 |
| 6 | Radek Štěpánek | 6 | 6 | | | | | | |

#### Third qualifier

| First round | First round | First round | First round | First round | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition |
| 3 | Gastão Elias | 2 | 4 | | | | | |
| | Go Soeda | 6 | 6 | | | | | |
| | Go Soeda | 6 | 6 | | | Go Soeda | 6 | 1 |
| | | | | | 7 | Vasek Pospisil | 0 | 1$^r$ |
| | Duck-hee Lee | 7$^7$ | 6$^2$ | 3 | 7 | Vasek Pospisil | 0 | 1$^r$ |
| 7 | Vasek Pospisil | 6$^1$ | 7$^7$ | 6 | | | | |

#### Fourth qualifier

| First round | First round | First round | First round | First round | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition |
| 4 | Donald Young | 6 | 7 | | | | | | |
| | Tatsuma Ito | 3 | 5 | | | | | | |
| | Tatsuma Ito | 3 | 5 | | 4 | Donald Young | 7 | 1 | 4 |
| | | | | | 8 | Ryan Harrison | 5 | 6 | 6 |
| WC | Yasutaka Uchiyama | 3 | 6 | 3 | 8 | Ryan Harrison | 5 | 6 | 6 |
| 8 | Ryan Harrison | 6 | 3 | 6 | | | | | |