# 2015 Shimadzu All Japan Indoor Tennis Championships – Singles

Martin Fischer was the defending champion but decided not to participate.
Michał Przysiężny won the title defeating John Millman in the final, 6–3, 3–6, 6–3.

## Seeds

* Go Soeda (quarterfinals)
* Tatsuma Ito (semifinals)
* Yūichi Sugita (second round)
* John Millman (final)
* Hiroki Moriya (quarterfinals)
* Zhang Ze (second round)
* Michał Przysiężny (champion)
* Benjamin Mitchell (second round)

## 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 |
| 7 | Michał Przysiężny | 7$^7$ | 6 | | | | | |
| | Andriej Kapaś | 6$^5$ | 4 | | | | | |
| | Andriej Kapaś | 6$^5$ | 4 | 7 | Michał Przysiężny | 6 | 3 | 6 |
| | | | | 4 | John Millman | 3 | 6 | 3 |
| 4 | John Millman | 6 | 7 | 4 | John Millman | 3 | 6 | 3 |
| 2 | Tatsuma Ito | 3 | 5 | | | | | |

### Top half

| 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 | G Soeda | 6 | 6 | | | | | | | | | | | | | | |
| Q | Arata Onozawa | 1 | 3 | 1 | G Soeda | 7$^7$ | 6 | | | | | | | | | | |
| Q | Kim Cheong-Eui | 6$^3$ | 1 | | Z Li | 6$^2$ | 3 | | | | | | | | | | |
| | Z Li | 7$^7$ | 6 | | | | | | 1 | G Soeda | 4 | 2 | | | | | |
| | A Zaitcev | 4 | 2 | | | | | | 7 | M Przysiężny | 6 | 6 | | | | | |
| | J Thompson | 6 | 6 | | J Thompson | 1 | 6 | 3 | | | | | | | | | |
| Q | Y Ito | 3 | 4 | 7 | M Przysiężny | 6 | 3 | 6 | | | | | | | | | |
| 7 | M Przysiężny | 6 | 6 | | | | | | | | | | | 7 | M Przysiężny | 7$^7$ | 6 |
| 3 | Y Sugita | 6 | 7$^7$ | | | | | | | | | | | | A Kapaś | 6$^5$ | 4 |
| | T Matsui | 4 | 6$^3$ | 3 | Y Sugita | 6$^3$ | 6 | 3 | | | | | | | | | |
| WC | T Suzuki | 2 | 2 | | Y Uchiyama | 7$^7$ | 1 | 6 | | | | | | | | | |
| | Y Uchiyama | 6 | 6 | | | | | | | Y Uchiyama | 6 | 6$^8$ | 5 | | | | |
| | Yu Watanuki | 3 | 4 | | | | | | | A Kapaś | 4 | 7$^{10}$ | 7 | | | | |
| | A Kapaś | 6 | 6 | | A Kapaś | 6 | 7$^8$ | | | | | | | | | | |
| PR | Karunuday Singh | 3 | 4 | 6 | Z Zhang | 3 | 6$^6$ | | | | | | | | | | |
| 6 | Z Zhang | 6 | 6 | | | | | | | | | | | | | | |

### Bottom 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 | Semifinals | Semifinals | Semifinals | Semifinals |
| 8 | B Mitchell | 6 | 6 | | | | | | | | | | | | | | |
| | L-c Huang | 4 | 3 | | 8 | B Mitchell | 4 | 4 | | | | | | | | | |
| WC | Issei Okamura | 1 | 3 | | Q | H Kondo | 6 | 6 | | | | | | | | | |
| Q | H Kondo | 6 | 6 | | | | | | | Q | H Kondo | | | | | | |
| | Shuichi Sekiguchi | 3 | 6$^9$ | | | | | | | 4 | J Millman | w/o | | | | | |
| | T Niki | 6 | 7$^{11}$ | | | T Niki | 3 | 6 | 2 | | | | | | | | |
| WC | Hiroyasu Ehara | 7$^7$ | 1 | 5 | 4 | J Millman | 6 | 4 | 6 | | | | | | | | |
| 4 | J Millman | 6$^4$ | 6 | 7 | | | | | | | | | | 4 | J Millman | 6 | 7 |
| 5 | H Moriya | 6 | 7$^7$ | | | | | | | | | | | 2 | T Ito | 3 | 5 |
| | M Ebden | 3 | 6$^5$ | | 5 | H Moriya | 4 | 7$^8$ | 6 | | | | | | | | |
| WC | Takashi Saito | 6 | 6 | | WC | T Saito | 6 | 6$^6$ | 3 | | | | | | | | |
| | K Takeuchi | 3 | 2 | | | | | | | 5 | H Moriya | 4 | 2 | | | | |
| | A Whittington | 3 | 6$^5$ | | | | | | | 2 | T Ito | 6 | 6 | | | | |
| | Yuya Kibi | 6 | 7$^7$ | | | Y Kibi | 5 | 4 | | | | | | | | | |
| | M Venus | 6$^3$ | 3 | | 2 | T Ito | 7 | 6 | | | | | | | | | |
| 2 | T Ito | 7$^7$ | 6 | | | | | | | | | | | | | | |