title: 2020 Bangkok Challenger – Singles
text: # 2020 Bangkok Challenger – Singles
  
  Henri Laaksonen was the defending champion but chose not to defend his title.
  
  Attila Balázs won the title after defeating Aslan Karatsev $7–6^{(7–5)},$ 0–6, $7–6^{(8–6)}$ in the final.
  
  ## Seeds
  
  All seeds receive a bye into the second round.
  
  * Jiří Veselý (second round)
  * Attila Balázs (champion)
  * Robin Haase (second round)
  * Denis Istomin (third round)
  * Malek Jaziri (second round)
  * Roman Safiullin (semifinals)
  * Illya Marchenko (second round)
  * Evgeny Karlovskiy (quarterfinals)
  * Gian Marco Moroni (semifinals)
  * Renzo Olivo (third round)
  * Teymuraz Gabashvili (withdrew)
  * Gonçalo Oliveira (second round)
  * Santiago Giraldo (third round)
  * JC Aragone (third round)
  * Borna Gojo (quarterfinals)
  * Daniel Altmaier (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
  
  | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals | Semifinals | Final | Final | Final | Final | Final |
  | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
  | | Aslan Karatsev | 6 | 6 | | | | | | | | | | |
  | | Wu Di | 2 | 2 | | | | | | | | | | |
  | | Wu Di | 2 | 2 | | Aslan Karatsev | 6 | 6 | | | | | | |
  | | | | | 9 | Gian Marco Moroni | 2 | 2 | | | | | | |
  | | Andrea Arnaboldi | 2 | 4 | 9 | Gian Marco Moroni | 2 | 2 | | | | | | |
  | 9 | Gian Marco Moroni | 6 | 6 | | | | | | | | | | |
  | 9 | Gian Marco Moroni | 6 | 6 | | | | | | | Aslan Karatsev | $6^5$ | 6 | $6^6$ |
  | | | | | | | | | | 2 | Attila Balázs | $7^7$ | 0 | $7^8$ |
  | 6 | Roman Safiullin | 6 | 6 | | | | | | | | | | | 2 | Attila Balázs | $7^7$ | 0 | $7^8$ |
  | 15 | Borna Gojo | 4 | 4 | | | | | | | | | | |
  | 15 | Borna Gojo | 4 | 4 | 6 | Roman Safiullin | 1 | $7^7$ | $6^5$ | | | | | |
  | | | | | 2 | Attila Balázs | 6 | $6^4$ | $7^7$ | | | | | |
  | 8 | Evgeny Karlovskiy | 1 | 5 | 2 | Attila Balázs | 6 | $6^4$ | $7^7$ | | | | | |
  | 2 | Attila Balázs | 6 | 7 | | | | | | | | | | |
  
  ### Top half
  
  **Section 1**
  
  | 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 | Third round | Quarterfinals | Quarterfinals | Quarterfinals |
  | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
  | | | | | | 1 | J Veselý | 4 | $7^7$ | 2 | | | | | | | | |
  | | A Karatsev | 6 | 6 | | | A Karatsev | 6 | $6^0$ | 6 | | | | | | | | |
  | WC | Congsup Congcar | 0 | 0 | | | | | | | | A Karatsev | 6 | 3 | 6 | | | |
  | WC | W Trongcharoenchaikul | 4 | 2 | | | | | | | | M Bašić | 4 | 6 | 4 | | | |
  | | M Bašić | 6 | 6 | | | M Bašić | $7^7$ | 7 | | | | | | | | | |
  | | | | | | 16 | D Altmaier | $6^5$ | 5 | | | | | | | | | |
  | | | | | | | | | | | | | | | | A Karatsev | 6 | 6 |
  | | | | | | | | | | | | | | | | D Wu | 2 | 2 |
  | | | | | | LL | T Brkić | $7^7$ | 4 | 1 | | | | | | | | |
  | | U Ignatik | 6 | $6^5$ | $0^r$ | Q | V Orlov | $6^2$ | 6 | 6 | | | | | | | | |
  | Q | V Orlov | 3 | $7^7$ | 2 | | | | | | Q | V Orlov | 6 | 4 | 3 | | | |
  | | E King | 3 | 2 | | | | | | | | D Wu | 2 | 6 | 6 | | | |
  | | D Wu | 6 | 6 | | | D Wu | 6 | $7^7$ | | | | | | | | | |
  | | | | | | 7 | I Marchenko | 1 | $6^5$ | | | | | | | | | |
  
  **Section 2**
  
  | 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 | Third round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals |
  | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
  | | | | | | 3 | R Haase | 3 | 6 | 1 | | | | | | | | | |
  | | C İlkel | 6 | 4 | 5 | | A Arnaboldi | 6 | 3 | 6 | | | | | | | | | |
  | | A Arnaboldi | 3 | 6 | 7 | | | | | | | A Arnaboldi | 4 | $7^7$ | 6 | | | | |
  | Alt | S Doumbia | 2 | 4 | | | | | | | 13 | S Giraldo | 6 | $6^2$ | 4 | | | | |
  | Q | Sidharth Rawat | 6 | 6 | | Q | S Rawat | 6 | $6^5$ | 4 | | | | | | | | | |
  | | | | | | 13 | S Giraldo | 3 | $7^7$ | 6 | | | | | | | | | |
  | | | | | | | | | | | | | | | | | A Arnaboldi | 2 | 4 |
  | | | | | | | | | | | | | | | | 9 | GM Moroni | 6 | 6 |
  | | | | | | 9 | GM Moroni | 6 | $7^9$ | | | | | | | | | | |
  | | A Pellegrino | 6 | 3 | 2 | | V Durasovic | 4 | $6^7$ | | | | | | | | | | |
  | | V Durasovic | 2 | 6 | 6 | | | | | | 9 | GM Moroni | 3 | 6 | 6 | | | | |
  | WC | K Samrej | 1 | 2 | | | | | | | | C-h Tseng | 6 | 4 | 3 | | | | |
  | | C-h Tseng | 6 | 6 | | | C-h Tseng | 6 | 6 | | | | | | | | | | |
  | | | | | | 5 | M Jaziri | 3 | 3 | | | | | | | | | | |
  
  ### 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 | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals |
  | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
  | | | | | | 6 | R Safiullin | 6 | 6 | | | | | | | | |
  | | F Peliwo | 7 | 3 | 6 | | F Peliwo | 2 | 3 | | | | | | | | |
  | | G Escobar | 5 | 6 | 4 | | | | | 6 | R Safiullin | 6 | 6 | | | | |
  | | T-h Yang | 3 | 4 | | | | | | | Ze Zhang | 2 | 1 | | | | |
  | | Ze Zhang | 6 | 6 | | | Ze Zhang | 6 | 6 | | | | | | | | |
  | | | | | | 12 | G Oliveira | 4 | 2 | | | | | | | | |
  | | | | | | | | | | | | | | 6 | R Safiullin | 6 | 6 |
  | | | | | | | | | | | | | | 15 | B Gojo | 4 | 4 |
  | | | | | | 15 | B Gojo | 6 | 6 | | | | | | | | |
  | WC | Michael Mathayomchand | 3 | 0 | | | A Nedovyesov | 1 | 4 | | | | | | | | |
  | | A Nedovyesov | 6 | 6 | | | | | | 15 | B Gojo | 6 | 6 | | | | |
  | | J Draper | $7^7$ | 6 | | | | | | 4 | D Istomin | 3 | 0 | | | | |
  | | Y-s Chung | $6^5$ | 3 | | | J Draper | 4 | 2 | | | | | | | | |
  | | | | | | 4 | D Istomin | 6 | 6 | | | | | | | | |
  
  **Section 4**
  
  | 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 |
  | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
  | | | | | | 8 | E Karlovskiy | $7^8$ | 6 | | | | | | | | | |
  | | K Uchida | 1 | 6 | 1 | | L Klein | $6^6$ | 4 | | | | | | | | | |
  | | L Klein | 6 | 3 | 6 | | | | | 8 | E Karlovskiy | 6 | $7^7$ | | | | | |
  | WC | P Kovapitukted | 2 | 6 | 6 | | | | | 10 | R Olivo | 0 | $6^3$ | | | | | |
  | | A Çelikbilek | 6 | 2 | 1 | WC | P Kovapitukted | $6^3$ | $6^4$ | | | | | | | | | |
  | | | | | | 10 | R Olivo | $7^7$ | $7^7$ | | | | | | | | | |
  | | | | | | | | | | | | | | | 8 | E Karlovskiy | 1 | 5 |
  | | | | | | | | | | | | | | | 2 | A Balázs | 6 | 7 |
  | | | | | | 14 | JC Aragone | $7^7$ | 6 | | | | | | | | | |
  | | A Molčan | 6 | 6 | | | A Molčan | $6^2$ | 1 | | | | | | | | | |
  | | A De Greef | 2 | 2 | | | | | | 14 | JC Aragone | 3 | 6 | 4 | | | | |
  | | J Rodionov | 2 | 3 | | | | | | 2 | A Balázs | 6 | 3 | 6 | | | | |
  | | D Yevseyev | 6 | 6 | | | D Yevseyev | 3 | 5 | | | | | | | | | |
  | | | | | | 2 | A Balázs | 6 | 7 | | | | | | | | | |
  