# 2023 Bengaluru Open – Singles

Aleksandar Vukic was the defending champion but chose not to defend his title.
Max Purcell won the title after defeating James Duckworth 3–6, 7–5, 7–6$^{(7–5)}$ in the final.

## Seeds

* Tseng Chun-hsin (quarterfinals)
* James Duckworth (final)
* Ryan Peniston (second round)
* Sebastian Ofner (first round)
* Luca Nardi (quarterfinals)
* Francesco Maestrelli (first round)
* Dalibor Svrčina (first round)
* Dimitar Kuzmanov (quarterfinals)

## 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 |
| | Hamad Međedović | 2 | 7 | 6$^4$ | | | | | |
| | Max Purcell | 6 | 5 | 7$^7$ | | | | | |
| | Max Purcell | 6 | 5 | 7$^7$ | | Max Purcell | 3 | 7 | 7$^7$ |
| | | | | | 2 | James Duckworth | 6 | 5 | 6$^5$ |
| Q | James McCabe | 3 | 3 | | 2 | James Duckworth | 6 | 5 | 6$^5$ |
| 2 | James Duckworth | 6 | 6 | | | | | | |

### Top 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 | Semifinals | Semifinals | Semifinals | Semifinals |
| 1 | C-h Tseng | 6 | 6 | | | | | | | | | | | | | | |
| | F Ferreira Silva | 4 | 4 | | 1 | C-h Tseng | 6 | 5 | 7$^7$ | | | | | | | | |
| | Y-h Hsu | 6 | 6 | | | Y-h Hsu | 2 | 7 | 6$^4$ | | | | | | | | |
| WC | L Borg | 2 | 3 | | | | | | | 1 | C-h Tseng | 1 | 2 | | | | |
| Q | P Gunneswaran | 3 | 4 | | | | | | | | H Međedović | 6 | 6 | | | | |
| | H Međedović | 6 | 6 | | | H Međedović | 6 | 5 | 6 | | | | | | | | |
| | N Moreno de Alboran | 7 | 6 | | | N Moreno de Alboran | 3 | 7 | 4 | | | | | | | | |
| 7 | D Svrčina | 5 | 2 | | | | | | | | | | | H Međedović | 2 | 7 | 6$^4$ |
| 4 | S Ofner | 6$^6$ | 6 | 3 | | | | | | | | | | M Purcell | 6 | 5 | 7$^7$ |
| | M Purcell | 7$^8$ | 3 | 6 | | M Purcell | 4 | 6 | 6 | | | | | | | | |
| | NH Lý | 6$^3$ | 7 | 4 | WC | S Nagal | 6 | 3 | 3 | | | | | | | | |
| WC | S Nagal | 7$^7$ | 5 | 6 | | | | | | | M Purcell | 6 | 6 | | | | |
| WC | SDP Dev | 2 | 2 | | | | | | | 5 | L Nardi | 2 | 0 | | | | |
| Q | J Jung | 6 | 6 | | Q | J Jung | 5 | 7 | 2 | | | | | | | | |
| | M Zekić | 4 | 4 | | 5 | L Nardi | 7 | 5 | 6 | | | | | | | | |
| 5 | L Nardi | 6 | 6 | | | | | | | | | | | | | | |

### Bottom half

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals |
| 6 | F Maestrelli | 1 | 2 | | | | | | | | | | | | | |
| PR | M Polmans | 6 | 6 | | PR | M Polmans | 5 | 5 | | | | | | | | |
| | L Giustino | 2 | 6$^3$ | | Q | J McCabe | 7 | 7 | | | | | | | | |
| Q | J McCabe | 6 | 7$^7$ | | | | | | Q | J McCabe | 6 | 7$^7$ | | | | |
| Alt | H Mayot | 3 | 6 | 6 | | | | | Alt | H Mayot | 3 | 6$^4$ | | | | |
| | D Sweeny | 6 | 1 | 4 | Alt | H Mayot | 7$^7$ | 6 | | | | | | | | |
| | N Serdarušić | 4 | 2 | | 3 | R Peniston | 6$^5$ | 0 | | | | | | | | |
| 3 | R Peniston | 6 | 6 | | | | | | | | | | Q | J McCabe | 3 | 3 |
| 8 | D Kuzmanov | 6 | 6 | | | | | | | | | | 2 | J Duckworth | 6 | 6 |
| Q | N Milojević | 4 | 1 | | 8 | D Kuzmanov | 6 | 6 | | | | | | | | |
| | M Neuchrist | 6 | 5 | 2 | Q | A Kachmazov | 3 | 4 | | | | | | | | |
| Q | A Kachmazov | 3 | 7 | 6 | | | | | 8 | D Kuzmanov | 4 | 1 | | | | |
| Q | G Mpetshi Perricard | 6$^4$ | 6 | 6 | | | | | 2 | J Duckworth | 6 | 6 | | | | |
| LL | Y Uchiyama | 7$^7$ | 4 | 4 | Q | G Mpetshi Perricard | 1 | 2 | | | | | | | | |
| | R Noguchi | 6$^3$ | 1 | | 2 | J Duckworth | 6 | 6 | | | | | | | | |
| 2 | J Duckworth | 7$^7$ | 6 | | | | | | | | | | | | | |