# 2023 Puerto Vallarta Open – Singles

Daniel Altmaier was the defending champion but lost in the quarterfinals to Yuta Shimizu.
Benoît Paire won the title after defeating Shimizu 3–6, 6–0, 6–2 in the final.

## Seeds

* Daniel Altmaier (quarterfinals)
* Enzo Couacaud (first round)
* Facundo Mena (first round, retired)
* Juan Pablo Ficovich (first round)
* Benoît Paire (champion)
* Gabriel Diallo (first round)
* Hong Seong-chan (first round)
* Jan Choinski (first 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 |
| Alt | Yuta Shimizu | 7$^7$ | 6 | | | | | | |
| Q | James McCabe | 6$^3$ | 1 | | | | | | |
| Q | James McCabe | 6$^3$ | 1 | | Alt | Yuta Shimizu | 6 | 0 | 2 |
| | | | | | 5 | Benoît Paire | 3 | 6 | 6 |
| Q | Illya Marchenko | 4 | 6 | 4 | 5 | Benoît Paire | 3 | 6 | 6 |
| 5 | Benoît Paire | 6 | 4 | 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 |
| 1 | D Altmaier | 6$^6$ | 7$^7$ | 6 | | | | | | | | | | | | | | |
| | D Koepfer | 7$^8$ | 6$^4$ | 1 | 1 | D Altmaier | 6 | 6 | | | | | | | | | | |
| Q | J Berrettini | 4 | 6$^6$ | | | E Ejupovic | 0 | 1 | | | | | | | | | | |
| | Elmar Ejupovic | 6 | 7$^8$ | | | | | | | 1 | D Altmaier | 6 | 4 | 3 | | | | |
| WC | Luca Lemaitre | 3 | 1 | | | | | | | Alt | Y Shimizu | 3 | 6 | 6 | | | | |
| | A Galarneau | 6 | 6 | | | A Galarneau | 4 | 2 | | | | | | | | | | |
| Alt | Y Shimizu | 4 | 6 | 7$^7$ | Alt | Y Shimizu | 6 | 6 | | | | | | | | | | |
| 6 | G Diallo | 6 | 3 | 6$^4$ | | | | | | | | | | | Alt | Y Shimizu | 7$^7$ | 6 |
| 4 | JP Ficovich | 3 | 6$^5$ | | | | | | | | | | | | Q | J McCabe | 6$^3$ | 1 |
| Q | J McCabe | 6 | 7$^7$ | | Q | J McCabe | 2 | 6 | 6 | | | | | | | | | |
| | S Shimabukuro | 6$^3$ | 6 | 6$^3$ | Q | R Statham | 6 | 1 | 3 | | | | | | | | | |
| Q | R Statham | 7$^7$ | 2 | 7$^7$ | | | | | | Q | J McCabe | 6 | 5 | 6 | | | | |
| PR | B Fratangelo | 6 | 6 | | | | | | | Alt | U Blanch | 4 | 7 | 3 | | | | |
| PR | A Bolt | 2 | 4 | | PR | B Fratangelo | 4 | 2 | | | | | | | | | | |
| Alt | U Blanch | 6 | 6 | | Alt | U Blanch | 6 | 6 | | | | | | | | | | |
| 7 | S-c Hong | 3 | 3 | | | | | | | | | | | | | | | |

### Bottom 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 |
| 8 | J Choinski | 4 | 4 | | | | | | | | | | | | | | | | |
| Q | Christian Langmo | 6 | 6 | | Q | C Langmo | 4 | 3 | | | | | | | | | | | |
| Q | I Marchenko | 6 | 6 | | Q | I Marchenko | 6 | 6 | | | | | | | | | | | |
| Q | G Andreozzi | 3 | 4 | | | | | | | Q | I Marchenko | 6$^4$ | 6 | 6 | | | | | |
| WC | R Pacheco Méndez | 5 | 3 | | | | | | | | G Elias | 7$^7$ | 3 | 0 | | | | | |
| | S Mochizuki | 7 | 6 | | | S Mochizuki | 3 | 6 | 6$^5$ | | | | | | | | | | |
| | G Elias | 6 | 2 | | | G Elias | 6 | 2 | 7$^7$ | | | | | | | | | | |
| 3 | F Mena | 1 | 0$^r$ | | | | | | | | | | | | Q | I Marchenko | 4 | 6 | 4 |
| 5 | B Paire | 6$^3$ | 6 | 7$^7$ | | | | | | | | | | | 5 | B Paire | 6 | 4 | 6 |
| | N Mejía | 7$^7$ | 1 | 6$^5$ | 5 | B Paire | 6 | 5 | 6 | | | | | | | | | | |
| Alt | D Rincón | 6 | 6 | | Alt | D Rincón | 2 | 7 | 2 | | | | | | | | | | |
| WC | AF Rubio Fierros | 4 | 2 | | | | | | | 5 | B Paire | 6 | 6 | | | | | | |
| | A Dougaz | 6 | 7$^7$ | | | | | | | | A Dougaz | 3 | 4 | | | | | | |
| | M Trungelliti | 1 | 6$^1$ | | | A Dougaz | 6 | 6 | | | | | | | | | | | |
| | D Yevseyev | 2 | 7$^7$ | 6 | | D Yevseyev | 1 | 0 | | | | | | | | | | | |
| 2 | E Couacaud | 6 | 6$^5$ | 2 | | | | | | | | | | | | | | | |