| Singles | |
|---|---|
| 2017 Santaizi ATP Challenger | |
| Champion |  Lu Yen-hsun |
| Runner-up |  Tatsuma Ito |
| Final score | 6–1, 7–6(7–4) |
Dan Evans was the defending champion but chose not to defend his title.
Lu Yen-hsun won the title after defeating Tatsuma Ito 6–1, 7–6(7–4) in the final. [1]
Marcos Baghdatis (first round) Lu Yen-hsun (champion)
Konstantin Kravchuk (quarterfinals)
Dudi Sela (second round)
Lukáš Lacko (second round)
Vasek Pospisil (semifinals)
Lee Duck-hee (first round) Go Soeda (quarterfinals)| Semifinals | Final | ||||||||||||
| Akira Santillan | 4 | 6 | 5 | ||||||||||
| Tatsuma Ito | 6 | 2 | 7 | ||||||||||
| Tatsuma Ito | 1 | 64 | |||||||||||
| 2 | Lu Yen-hsun | 6 | 77 | ||||||||||
| 6 | Vasek Pospisil | 4 | 4 | ||||||||||
| 2 | Lu Yen-hsun | 6 | 6 | ||||||||||
| First round | Second round | Quarterfinals | Semifinals | ||||||||||||||||||||||||
| 1/WC | M Baghdatis | 3 | 5 | ||||||||||||||||||||||||
| S-w Kwon | 6 | 7 | S-w Kwon | 77 | 5 | 2 | |||||||||||||||||||||
| Q |  M Ebden | 6 | 7 | Q | M Ebden | 63 | 7 | 6 | |||||||||||||||||||
| T Chen | 2 | 5 | Q | M Ebden | 4 | 6 | 0 | ||||||||||||||||||||
| A Santillan | 6 | 3 | 77 | A Santillan | 6 | 1 | 6 | ||||||||||||||||||||
| M Matosevic | 1 | 6 | 65 | A Santillan | 6 | 3 | 77 | ||||||||||||||||||||
 R Ramanathan | 2 | 6 | 6 | R Ramanathan | 4 | 6 | 64 | ||||||||||||||||||||
| 7 | D-h Lee | 6 | 2 | 4 | A Santillan | 4 | 6 | 5 | |||||||||||||||||||
| 3 | K Kravchuk | 6 | 6 | T Ito | 6 | 2 | 7 | ||||||||||||||||||||
 Marek Jaloviec | 3 | 3 | 3 | K Kravchuk | 77 | 7 | |||||||||||||||||||||
| Shuichi Sekiguchi | 1 | 4 |  F Škugor | 65 | 5 | ||||||||||||||||||||||
| F Škugor | 6 | 6 | 3 | K Kravchuk | 4 | 65 | |||||||||||||||||||||
| Y Uchiyama | 4 | 0r | T Ito | 6 | 77 | ||||||||||||||||||||||
| T Ito | 6 | 3 | T Ito | 6 | 6 | ||||||||||||||||||||||
| J Jung | 1 | 4 | 5 | L Lacko | 4 | 4 | |||||||||||||||||||||
| 5 | L Lacko | 6 | 6 | ||||||||||||||||||||||||
| First round | Second round | Quarterfinals | Semifinals | ||||||||||||||||||||||||
| 6 | V Pospisil | 7 | 6 | ||||||||||||||||||||||||
| Q | S Mukund | 5 | 2 | 6 | V Pospisil | 77 | 6 | ||||||||||||||||||||
| P Gunneswaran | 77 | 6 | P Gunneswaran | 64 | 2 | ||||||||||||||||||||||
| Q |  R Roelofse | 64 | 4 | 6 | V Pospisil | 6 | 6 | ||||||||||||||||||||
 M Chiudinelli | 6 | 6 | M Chiudinelli | 3 | 4 | ||||||||||||||||||||||
| L Saville | 4 | 4 | M Chiudinelli | 6 | 6 | ||||||||||||||||||||||
| WC | T-h Yang | 4 | 2 | 4 | D Sela | 4 | 3 | ||||||||||||||||||||
| 4 | D Sela | 6 | 6 | 6 | V Pospisil | 4 | 4 | ||||||||||||||||||||
| 8 | G Soeda | 77 | 77 | 2 | Y-h Lu | 6 | 6 | ||||||||||||||||||||
| H Moriya | 62 | 65 | 8 | G Soeda | 4 | 6 | 6 | ||||||||||||||||||||
| Q |  M Bachinger | 6 | 6 | Q | M Bachinger | 6 | 4 | 1 | |||||||||||||||||||
 B Klein | 4 | 2 | 8 | G Soeda | 1 | 3 | |||||||||||||||||||||
| WC | J Wang | 4 | 6 | 0 | 2 | Y-h Lu | 6 | 6 | |||||||||||||||||||
| A Kudryavtsev | 6 | 4 | 0r | WC | J Wang | 5 | 1 | ||||||||||||||||||||
| WC | K-y Lee | 2 | 1 | 2 | Y-h Lu | 7 | 6 | ||||||||||||||||||||
| 2 | Y-h Lu | 6 | 6 | ||||||||||||||||||||||||
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