title: 2019 Santaizi ATP Challenger – Singles
text: # 2019 Santaizi ATP Challenger – Singles
  
  Yuki Bhambri was the defending champion but chose not to defend his title.
  
  Dennis Novak won the title after defeating Sergiy Stakhovsky 6–2, 6–4 in the final.
  
  ## Seeds
  
  All seeds receive a bye into the second round.
  
  * Lloyd Harris (third round)
  * Evgeny Donskoy (second round)
  * Sergiy Stakhovsky (final)
  * Lukáš Lacko (third round)
  * Matthias Bachinger (second round)
  * Kamil Majchrzak (third round)
  * Jason Jung (quarterfinals)
  * Marcos Baghdatis (second round, retired)
  * Ramkumar Ramanathan (quarterfinals)
  * Tatsuma Ito (quarterfinals)
  * Dennis Novak (champion)
  * James Duckworth (third round)
  * Kwon Soon-woo (semifinals)
  * Hiroki Moriya (second round)
  * Yūichi Sugita (quarterfinals)
  * Maxime Janvier (third 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
  
  | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals | Final | Final | Final | Final |
  | - | - | - | - | - | - | - | - | - | - | - | - | - |
  | 13 | Kwon Soon-woo | $7^8$ | 6 | | | | | | | | | |
  | 9 | Ramkumar Ramanathan | $6^6$ | 3 | | | | | | | | | |
  | 9 | Ramkumar Ramanathan | $6^6$ | 3 | | 13 | Kwon Soon-woo | 3 | 4 | | | | |
  | | | | | | 11 | Dennis Novak | 6 | 6 | | | | |
  | 15 | Yūichi Sugita | $6^5$ | 3 | | 11 | Dennis Novak | 6 | 6 | | | | |
  | 11 | Dennis Novak | $7^7$ | 6 | | | | | | | | | |
  | 11 | Dennis Novak | $7^7$ | 6 | | | | | | 11 | Dennis Novak | 6 | 6 |
  | | | | | | | | | | 3 | Sergiy Stakhovsky | 2 | 4 |
  | 10 | Tatsuma Ito | $6^3$ | $7^7$ | 4 | | | | | | | | | 3 | Sergiy Stakhovsky | 2 | 4 |
  | 3 | Sergiy Stakhovsky | $7^7$ | $6^5$ | 6 | | | | | | | | |
  | 3 | Sergiy Stakhovsky | $7^7$ | $6^5$ | 6 | 3 | Sergiy Stakhovsky | $7^7$ | $7^7$ | | | | |
  | | | | | | | Go Soeda | $6^4$ | $6^4$ | | | | |
  | 7 | Jason Jung | $6^3$ | 1 | | | Go Soeda | $6^4$ | $6^4$ | | | | |
  | | Go Soeda | $7^7$ | 6 | | | | | | | | | |
  
  ### Top half
  
  **Section 1**
  
  | First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Third round | Third round | Third round | Third round | Third round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals |
  | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
  | | | | | | 1 | L Harris | $7^9$ | 6 | | | | | | | | | |
  | LL | B Klein | 6 | 7 | | LL | B Klein | $6^7$ | 2 | | | | | | | | | |
  | Q | C-p Hsieh | 3 | 5 | | | | | | 1 | L Harris | 5 | $7^7$ | 3 | | | | |
  | Q | S Balaji | 4 | $7^7$ | 4 | | | | | 13 | S-w Kwon | 7 | $6^3$ | 6 | | | | |
  | | L Saville | 6 | $6^4$ | 6 | | L Saville | 4 | 4 | | | | | | | | | |
  | | | | | | 13 | S-w Kwon | 6 | 6 | | | | | | | | | |
  | | | | | | | | | | | | | | | 13 | S-w Kwon | $7^8$ | 6 |
  | | | | | | | | | | | | | | | 9 | R Ramanathan | $6^6$ | 3 |
  | | | | | | 9 | R Ramanathan | 6 | 6 | | | | | | | | | |
  | | Y-s Chung | 6 | $6^5$ | 4 | | M Banes | 3 | 2 | | | | | | | | | |
  | | M Banes | 2 | $7^7$ | 6 | | | | | 9 | R Ramanathan | 4 | 6 | 6 | | | | |
  | | C Altamirano | 5 | 7 | 3 | | | | | WC | C-h Lo | 6 | 3 | 2 | | | | |
  | WC | Lo Chien-hsun | 7 | 5 | 6 | WC | C-h Lo | $6^1$ | 4 | | | | | | | | | |
  | | | | | | 8 | M Baghdatis | $7^7$ | $2^r$ | | | | | | | | | |
  
  **Section 2**
  
  | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Second round | Third round | Third round | Third round | Third round | Third round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals |
  | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
  | | | | | 4 | L Lacko | 4 | $7^7$ | 6 | | | | | | | | | |
  | M-A Hüsler | $7^7$ | $6^5$ | 6 | | M-A Hüsler | 6 | $6^0$ | 2 | | | | | | | | | |
  | M Purcell | $6^4$ | $7^7$ | 1 | | | | | | 4 | L Lacko | 6 | 3 | 4 | | | | |
  | S Mukund | 3 | 4 | | | | | | | 15 | Y Sugita | 3 | 6 | 6 | | | | |
  | C İlkel | 6 | 6 | | | C İlkel | 5 | 3 | | | | | | | | | | |
  | | | | | 15 | Y Sugita | 7 | 6 | | | | | | | | | | |
  | | | | | | | | | | | | | | | 15 | Y Sugita | $6^5$ | 3 |
  | | | | | | | | | | | | | | | 11 | D Novak | $7^7$ | 6 |
  | | | | | 11 | D Novak | 6 | 6 | | | | | | | | | | |
  | Renta Tokuda | 6 | 6 | | | R Tokuda | 2 | 2 | | | | | | | | | | |
  | Y Takahashi | 2 | 1 | | | | | | | 11 | D Novak | 6 | $6^6$ | 6 | | | | |
  | K Uchida | 6 | 6 | | | | | | | | K Uchida | 3 | $7^8$ | 4 | | | | |
  | D-h Lee | 4 | 4 | | | K Uchida | $7^8$ | 6 | | | | | | | | | | |
  | | | | | 5 | M Bachinger | $6^6$ | 2 | | | | | | | | | | |
  
  ### Bottom half
  
  **Section 3**
  
  | First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Third round | Third round | Third round | Third round | Third round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals |
  | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
  | | | | | | 6 | K Majchrzak | 6 | 6 | | | | | | | | | | |
  | | A Santillan | 6 | $7^7$ | | | A Santillan | 3 | 1 | | | | | | | | | | |
  | WC | Y-h Hsu | 4 | $6^5$ | | | | | | 6 | K Majchrzak | $7^7$ | $6^7$ | $6^2$ | | | | | |
  | WC | K-y Lee | 6 | 6 | | | | | | 10 | T Ito | $6^3$ | $7^9$ | $7^7$ | | | | | |
  | WC | R Ho | 4 | 2 | | WC | K-y Lee | 3 | 3 | | | | | | | | | | |
  | | | | | | 10 | T Ito | 6 | 6 | | | | | | | | | | |
  | | | | | | | | | | | | | | | 10 | T Ito | $6^3$ | $7^7$ | 4 |
  | | | | | | | | | | | | | | | 3 | S Stakhovsky | $7^7$ | $6^5$ | 6 |
  | | | | | | 16 | M Janvier | 6 | 7 | | | | | | | | | | |
  | PR | I Marchenko | 6 | 3 | 4 | | TK Wang | 4 | 5 | | | | | | | | | | |
  | | TK Wang | 4 | 6 | 6 | | | | | 16 | M Janvier | 5 | 4 | | | | | | |
  | | S Robert | 6 | 6 | | | | | | 3 | S Stakhovsky | 7 | 6 | | | | | | |
  | | G Oliveira | 3 | 4 | | | S Robert | $6^2$ | 2 | | | | | | | | | | |
  | | | | | | 3 | S Stakhovsky | $7^7$ | 6 | | | | | | | | | | |
  
  **Section 4**
  
  | First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Second round | Third round | Third round | Third round | Third round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals |
  | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
  | | | | | | 7 | J Jung | 6 | 6 | | | | | | | | | |
  | | T-l Wu | 6 | 6 | | | T-l Wu | 4 | 4 | | | | | | | | | |
  | WC | C-y Yu | 4 | 3 | | | | | | | 7 | J Jung | 6 | 6 | | | | |
  | | Makoto Ochi | 4 | 3 | | | | | | | 12 | J Duckworth | 2 | 2 | | | | |
  | | T-h Yang | 6 | 6 | | | T-h Yang | $6^6$ | 0 | | | | | | | | | |
  | | | | | | 12 | J Duckworth | $7^8$ | 6 | | | | | | | | | |
  | | | | | | | | | | | | | | | 7 | J Jung | $6^3$ | 1 |
  | | | | | | | | | | | | | | | | G Soeda | $7^7$ | 6 |
  | | | | | | 14 | H Moriya | 6 | 4 | 4 | | | | | | | | |
  | | A Harris | $7^7$ | 4 | 6 | | A Harris | 4 | 6 | 6 | | | | | | | | |
  | | S Myneni | $6^4$ | 6 | 2 | | | | | | | A Harris | 2 | 3 | | | | |
  | | G Soeda | $6^8$ | 6 | 6 | | | | | | | G Soeda | 6 | 6 | | | | |
  | | Y Uchiyama | $7^{10}$ | 4 | 2 | | G Soeda | 4 | 6 | $7^7$ | | | | | | | | |
  | | | | | | 2 | E Donskoy | 6 | 4 | $6^5$ | | | | | | | | |
  