# 2023 Arizona Tennis Classic – Singles

Denis Kudla was the defending champion but lost in the first round to Alexander Bublik.
Nuno Borges won the title after defeating Alexander Shevchenko 4–6, 6–2, 6–1 in the final.

## Seeds

* Matteo Berrettini (quarterfinals)
* Diego Schwartzman (first round)
* Richard Gasquet (second round)
* Alexander Bublik (quarterfinals)
* Jiří Lehečka (first round)
* Marc-Andrea Hüsler (second round)
* Mikael Ymer (second round)
* Emil Ruusuvuori (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

| Semifinals | Semifinals | Semifinals | Semifinals | Semifinals | Final | Final | Final | Final | Final |
| Q | Alexander Shevchenko | 6$^3$ | 6 | 6 | | | | | |
| | Quentin Halys | 7$^7$ | 4 | 3 | | | | | |
| | Quentin Halys | 7$^7$ | 4 | 3 | Q | Alexander Shevchenko | 6 | 2 | 1 |
| | | | | | Alt | Nuno Borges | 4 | 6 | 6 |
| Q | Jan-Lennard Struff | 4 | 2 | | Alt | Nuno Borges | 4 | 6 | 6 |
| Alt | Nuno Borges | 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 | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals | Semifinals |
| 1/WC | M Berrettini | 6 | 6 | | | | | | | | | | | | | | | | |
| LL | M Bellucci | 4 | 4 | | 1/WC | M Berrettini | 7 | 7$^7$ | | | | | | | | | | | |
| Alt | M Arnaldi | 2 | 6 | 3 | Q | A Vukic | 5 | 6$^5$ | | | | | | | | | | | |
| Q | A Vukic | 6 | 4 | 6 | | | | | | 1/WC | M Berrettini | 4 | 6 | 3 | | | | | |
| Q | A Shevchenko | 6 | 6$^2$ | 6 | | | | | | Q | A Shevchenko | 6 | 3 | 6 | | | | | |
| WC | G Monfils | 4 | 7$^7$ | 3 | Q | A Shevchenko | 7 | 6 | | | | | | | | | | | |
| | F Krajinović | 6$^5$ | 0$^r$ | | 6 | M-A Hüsler | 5 | 1 | | | | | | | | | | | |
| 6 | M-A Hüsler | 7$^7$ | 2 | | | | | | | | | | | | Q | A Shevchenko | 6$^3$ | 6 | 6 |
| 3 | R Gasquet | 7$^7$ | 6 | | | | | | | | | | | | | Q Halys | 7$^7$ | 4 | 3 |
| Q | E Nava | 6$^5$ | 3 | | 3 | R Gasquet | 2 | 6 | 4 | | | | | | | | | | |
| Alt | C O'Connell | 3 | 6 | 6$^6$ | Q | A Kovacevic | 6 | 3 | 6 | | | | | | | | | | |
| Q | A Kovacevic | 6 | 3 | 7$^8$ | | | | | | Q | A Kovacevic | 6 | 3 | 2 | | | | | |
| | Q Halys | 6 | 6 | | | | | | | | Q Halys | 1 | 6 | 6 | | | | | |
| | G Barrère | 3 | 1 | | | Q Halys | 3 | 6 | 6 | | | | | | | | | | |
| | R Carballés Baena | 3 | 0 | | 8 | E Ruusuvuori | 6 | 3 | 4 | | | | | | | | | | |
| 8 | E Ruusuvuori | 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 | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals |
| 5 | J Lehečka | 6$^5$ | 4 | | | | | | | | | | | | | | |
| Alt | T Kokkinakis | 7$^7$ | 6 | | Alt | T Kokkinakis | 3 | 3 | | | | | | | | | |
| Q | P Kotov | 2 | 4 | | Q | J-L Struff | 6 | 6 | | | | | | | | | |
| Q | J-L Struff | 6 | 6 | | | | | | Q | J-L Struff | 6 | 3 | 6 | | | | |
| Alt | Z Zhang | 6$^4$ | 6 | 6 | | | | | 4 | A Bublik | 4 | 6 | 4 | | | | |
| LL | R Hijikata | 7$^7$ | 3 | 4 | Alt | Z Zhang | 1 | 2 | | | | | | | | | |
| Alt | D Kudla | 6$^9$ | 6 | 2 | 4 | A Bublik | 6 | 6 | | | | | | | | | |
| 4 | A Bublik | 7$^{11}$ | 4 | 6 | | | | | | | | | | Q | J-L Struff | 4 | 2 |
| 7 | M Ymer | 6 | 7 | | | | | | | | | | | Alt | N Borges | 6 | 6 |
| Alt | R Albot | 1 | 5 | | 7 | M Ymer | 2 | 2 | | | | | | | | | |
| | O Otte | 4 | 3 | | | A Popyrin | 6 | 6 | | | | | | | | | |
| | A Popyrin | 6 | 6 | | | | | | | A Popyrin | 5 | 7$^7$ | 3 | | | | |
| Alt | R Safiullin | 6 | 6 | | | | | | Alt | N Borges | 7 | 6$^4$ | 6 | | | | |
| | P Martínez | 3 | 2 | | Alt | R Safiullin | 5 | 4 | | | | | | | | | |
| Alt | N Borges | 7 | 6 | | Alt | N Borges | 7 | 6 | | | | | | | | | |
| 2/WC | D Schwartzman | 5 | 3 | | | | | | | | | | | | | | |