# 2019 Chennai Open Challenger – Singles

Jordan Thompson was the defending champion but chose not to defend his title.
Corentin Moutet won the title after defeating Andrew Harris 6–3, 6–3 in the final.

## Seeds

All seeds receive a bye into the second round.
* Prajnesh Gunneswaran (semifinals)
* Corentin Moutet (champion)
* Mohamed Safwat (third round)
* Gianluca Mager (third round)
* Alejandro Davidovich Fokina (quarterfinals)
* Kwon Soon-woo (third round)
* James Duckworth (quarterfinals)
* Lee Duck-hee (third round)
* Gastão Elias (third round)
* Nicola Kuhn (quarterfinals)
* Saketh Myneni (third round)
* Maverick Banes (second round)
* José Hernández-Fernández (second round)
* Laurynas Grigelis (third round)
* Yang Tsung-hua (second round)
* Sasikumar Mukund (semifinals)

## 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 | Semifinals | Final | Final | Final | Final |
| 1 | Prajnesh Gunneswaran | 6 | 6 | | | | | | | | | | |
| 7 | James Duckworth | 4 | 3 | | | | | | | | | | |
| 7 | James Duckworth | 4 | 3 | | 1 | Prajnesh Gunneswaran | 4 | 6 | 0 | | | | |
| | | | | | | Andrew Harris | 6 | 3 | 6 | | | | |
| | Andrew Harris | 1 | 7$^8$ | 6 | | Andrew Harris | 6 | 3 | 6 | | | | |
| 5 | Alejandro Davidovich Fokina | 6 | 6$^6$ | 2 | | | | | | | | | |
| 5 | Alejandro Davidovich Fokina | 6 | 6$^6$ | 2 | | | | | | | Andrew Harris | 3 | 3 |
| | | | | | | | | | | 2 | Corentin Moutet | 6 | 6 |
| | Brydan Klein | 2 | 6 | 6$^3$ | | | | | | | | | | 2 | Corentin Moutet | 6 | 6 |
| 16 | Sasikumar Mukund | 6 | 3 | 7$^7$ | | | | | | | | | |
| 16 | Sasikumar Mukund | 6 | 3 | 7$^7$ | 16 | Sasikumar Mukund | 6 | 4 | 2 | | | | |
| | | | | | 2 | Corentin Moutet | 3 | 6 | 6 | | | | |
| 10 | Nicola Kuhn | 7 | 3 | 4 | 2 | Corentin Moutet | 3 | 6 | 6 | | | | |
| 2 | Corentin Moutet | 5 | 6 | 6 | | | | | | | | | |

### Top half
#### Section 1

| 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 | P Gunneswaran | 6 | 6 | | | | | | | | | |
| PR | D Nguyen | 3 | 2 | PR | D Altmaier | 4 | 4 | | | | | | | | | |
| PR | D Altmaier | 6 | 6 | | | | | 1 | P Gunneswaran | 6 | 6 | | | | | |
| | A Kadhe | 6 | 6 | | | | | | A Kadhe | 4 | 2 | | | | | |
| ITF | I Nedelko | 4 | 1 | | A Kadhe | 6 | 6 | | | | | | | | | |
| | | | | 13 | J Hernández-Fernández | 3 | 2 | | | | | | | | | |
| | | | | | | | | | | | | | 1 | P Gunneswaran | 6 | 6 |
| | | | | | | | | | | | | | 7 | J Duckworth | 4 | 3 |
| | | | | 9 | G Elias | 6 | 7$^7$ | | | | | | | | | |
| | B Ellis | 6 | 6 | | B Ellis | 2 | 6$^4$ | | | | | | | | | |
| WC | Siddharth Vishwakarma | 2 | 2 | | | | | 9 | G Elias | 6 | 5 | 5 | | | | |
| | D Kelly | 6$^6$ | 3 | | | | | 7 | J Duckworth | 4 | 7 | 7 | | | | |
| Alt | I Gakhov | 7$^8$ | 6 | Alt | I Gakhov | 6$^2$ | 5 | | | | | | | | | |
| | | | | 7 | J Duckworth | 7$^7$ | 7 | | | | | | | | | |

#### 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 | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals |
| | | | | | 4 | G Mager | 6 | 6 | | | | | | | | | | |
| Q | K Uesugi | 6 | 3 | 6$^8$ | | C Altamirano | 3 | 1 | | | | | | | | | | |
| | C Altamirano | 1 | 6 | 7$^{10}$ | | | | | | 4 | G Mager | 6$^2$ | 6$^2$ | | | | | |
| | A Harris | 6 | 6 | | | | | | | | A Harris | 7$^7$ | 7$^7$ | | | | | |
| | A Vukic | 4 | 4 | | | A Harris | 6 | 6 | | | | | | | | | | |
| | | | | | 15 | T-h Yang | 2 | 1 | | | | | | | | | | |
| | | | | | | | | | | | | | | | A Harris | 1 | 7$^8$ | 6 |
| | | | | | | | | | | | | | | 5 | A Davidovich Fokina | 6 | 6$^6$ | 2 |
| | | | | | 11 | S Myneni | 6 | 6 | | | | | | | | | | |
| | Carlos Boluda-Purkiss | 2 | 6 | 2 | WC | VS Prashanth | 4 | 3 | | | | | | | | | | |
| WC | VS Prashanth | 6 | 2 | 6 | | | | | | 11 | S Myneni | 3 | 6$^3$ | | | | | |
| WC | Abhinav Sanjeev Shanmugam | 3 | 4 | | | | | | | 5 | A Davidovich Fokina | 6 | 7$^7$ | | | | | |
| | Renta Tokuda | 6 | 6 | | | R Tokuda | 6 | 2 | 3 | | | | | | | | | |
| | | | | | 5 | A Davidovich Fokina | 3 | 6 | 6 | | | | | | | | | |

### Bottom half
#### Section 3

| 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 | S-w Kwon | 6 | 6 | | | | | | | | | | |
| Q | A Zhurbin | 6 | 6 | Q | A Zhurbin | 1 | 2 | | | | | | | | | | |
| | R Ojeda Lara | 2 | 4 | | | | | 6 | S-w Kwon | 4 | 6 | 3 | | | | | |
| WC | Manish Sureshkumar | 2 | 3 | | | | | | B Klein | 6 | 4 | 6 | | | | | |
| | B Klein | 6 | 6 | | B Klein | 6 | 6 | | | | | | | | | | |
| | | | | 12 | M Banes | 4 | 1 | | | | | | | | | | |
| | | | | | | | | | | | | | | B Klein | 2 | 6 | 6$^3$ |
| | | | | | | | | | | | | | 16 | S Mukund | 6 | 3 | 7$^7$ |
| | | | | 16 | S Mukund | 6 | 6 | | | | | | | | | | |
| | T-l Wu | 4 | 5 | | S Fanselow | 3 | 1 | | | | | | | | | | |
| | S Fanselow | 6 | 7 | | | | | 16 | S Mukund | 6 | 6 | | | | | | |
| | R Statham | 4 | 4 | | | | | 3 | M Safwat | 3 | 4 | | | | | | |
| | A Pellegrino | 6 | 6 | | A Pellegrino | 3 | 5 | | | | | | | | | | |
| | | | | 3 | M Safwat | 6 | 7 | | | | | | | | | | |

#### 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 | Quarterfinals |
| | | | | | 8 | D-h Lee | 6 | 6 | | | | | | | | | | |
| ITF | D Pérez Sanz | 3 | 2 | | | S Nagal | 3 | 4 | | | | | | | | | | |
| | S Nagal | 6 | 6 | | | | | | | 8 | D-h Lee | 4 | 4 | | | | | |
| | A Escoffier | 6 | 6 | | | | | | | 10 | N Kuhn | 6 | 6 | | | | | |
| ITF | E Tiurnev | 2 | 2 | | | A Escoffier | 6 | 6$^5$ | 0$^r$ | | | | | | | | | |
| | | | | | 10 | N Kuhn | 4 | 7$^7$ | 4 | | | | | | | | | |
| | | | | | | | | | | | | | | 10 | N Kuhn | 7 | 3 | 4 |
| | | | | | | | | | | | | | | 2 | C Moutet | 5 | 6 | 6 |
| | | | | | 14 | L Grigelis | 4 | 6 | 6 | | | | | | | | | |
| | B Mousley | 7$^7$ | 1 | 3 | WC | NH Lý | 6 | 2 | 1 | | | | | | | | | |
| WC | NH Lý | 6$^4$ | 6 | 6 | | | | | | 14 | L Grigelis | 2 | 3 | | | | | |
| | L Saville | 7$^9$ | 6 | | | | | | | 2 | C Moutet | 6 | 6 | | | | | |
| ITF | M Echargui | 6$^7$ | 1 | | | L Saville | 2 | 7$^7$ | 4 | | | | | | | | | |
| | | | | | 2 | C Moutet | 6 | 6$^1$ | 6 | | | | | | | | | |