# 2015 Santaizi ATP Challenger – Singles

Gilles Müller was the defending champion, but he did not participate this year. He played in Estoril instead.
Sam Groth won the tournament, defeating Konstantin Kravchuk in the final.

## Seeds

* Lu Yen-hsun (quarterfinals)
* Sam Groth (champion)
* Go Soeda (quarterfinals)
* Lukáš Lacko (second round)
* Tatsuma Ito (quarterfinals)
* Ryan Harrison (second round, retired)
* Illya Marchenko (quarterfinals)
* Jimmy Wang (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 | Semifinals | Final | Final | Final | Final | Final |
| | Konstantin Kravchuk | 6$^3$ | 7$^7$ | 7$^7$ | | | | | |
| | Matthew Ebden | 7$^7$ | 6$^4$ | 6$^4$ | | | | | |
| | Matthew Ebden | 7$^7$ | 6$^4$ | 6$^4$ | | Konstantin Kravchuk | 7$^7$ | 4 | 6$^3$ |
| | | | | | 2 | Sam Groth | 6$^5$ | 6 | 7$^7$ |
| | Yuki Bhambri | 4 | 5 | | 2 | Sam Groth | 6$^5$ | 6 | 7$^7$ |
| 2 | Sam Groth | 6 | 7 | | | | | | |

### Top half

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals |
| 1 | Y-h Lu | 7$^8$ | 6 | | | | | | | | | | | | | | |
| | T Chen | 6$^6$ | 2 | | 1 | Y-h Lu | 6 | 6 | | | | | | | | | |
| Q | T Matsui | 6 | 6$^5$ | 3 | | T Niki | 1 | 3 | | | | | | | | | |
| | T Niki | 4 | 7$^7$ | 6 | | | | | 1 | Y-h Lu | 6$^4$ | 6 | 5 | | | | |
| | J Jung | 7$^7$ | 5 | 3 | | | | | | K Kravchuk | 7$^7$ | 4 | 7 | | | | |
| | K Kravchuk | 6$^5$ | 7 | 6 | | K Kravchuk | 0 | | | | | | | | | | |
| WC | C-h Yi | 3 | 4 | | 6 | R Harrison | 1$^r$ | | | | | | | | | | |
| 6 | R Harrison | 6 | 6 | | | | | | | | | | | K Kravchuk | 6$^3$ | 7$^7$ | 7$^7$ |
| 4 | L Lacko | 6 | 6 | | | | | | | | | | | M Ebden | 7$^7$ | 6$^4$ | 6$^4$ |
| | B Klein | 3 | 4 | | 4 | L Lacko | 5 | 3 | | | | | | | | | |
| | M Ebden | 6 | 6 | | | M Ebden | 7 | 6 | | | | | | | | | |
| | E Corrie | 4 | 2 | | | | | | | M Ebden | 6 | 6 | | | | | |
| | D Kudla | 6 | 6 | | | | | | 7 | I Marchenko | 3 | 4 | | | | | |
| WC | J-c Hung | 2 | 4 | | | D Kudla | 0 | 5 | | | | | | | | | |
| | D Udomchoke | 3 | 5 | | 7 | I Marchenko | 6 | 7 | | | | | | | | | |
| 7 | I Marchenko | 6 | 7 | | | | | | | | | | | | | | |

### 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 | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals |
| 8 | J Wang | 2 | 6 | 7$^7$ | | | | | | | | | | | | | | |
| | R Ramanathan | 6 | 3 | 6$^4$ | 8 | J Wang | 3 | 1 | | | | | | | | | | |
| Q | Yuuya Kibi | 1 | 6 | 3 | | Y Bhambri | 6 | 6 | | | | | | | | | | |
| | Y Bhambri | 6 | 4 | 6 | | | | | | | Y Bhambri | 6 | 3 | 6 | | | | |
| WC | C-f Wang | 3 | 2 | | | | | | | 3 | G Soeda | 4 | 6 | 3 | | | | |
| Q | M Barton | 6 | 6 | | Q | M Barton | 7$^7$ | 3 | 4 | | | | | | | | | |
| WC | Ho Chih-jen | 2 | 0 | | 3 | G Soeda | 6$^3$ | 6 | 6 | | | | | | | | | |
| 3 | G Soeda | 6 | 6 | | | | | | | | | | | | | Y Bhambri | 4 | 5 |
| 5 | T Ito | 6 | 6 | | | | | | | | | | | | 2 | S Groth | 6 | 7 |
| | F Nielsen | 2 | 3 | | 5 | T Ito | 6 | 6 | | | | | | | | | | |
| | S Myneni | 2$^r$ | | | | H Moriya | 3 | 3 | | | | | | | | | | |
| | H Moriya | 5 | | | | | | | | 5 | T Ito | 2 | 6$^4$ | | | | | |
| Q | C-y Yu | 4 | 3 | | | | | | | 2 | S Groth | 6 | 7$^7$ | | | | | |
| | J-P Smith | 6 | 6 | | | J-P Smith | 6$^3$ | 6$^2$ | | | | | | | | | | |
| | Z Zhang | 6$^3$ | 4 | | 2 | S Groth | 7$^7$ | 7$^7$ | | | | | | | | | | |
| 2 | S Groth | 7$^7$ | 6 | | | | | | | | | | | | | | | |