# 2023 Sarasota Open – Singles

Daniel Elahi Galán was the defending champion but lost in the final to Daniel Altmaier.
Altmaier won the title after defeating Galán 7–6$^{(7–1)}$, 6–1 in the final.

## Seeds

* Jason Kubler (quarterfinals)
* Zhang Zhizhen (second round)
* Daniel Elahi Galán (final)
* Emilio Gómez (first round)
* Daniel Altmaier (champion)
* Hugo Dellien (withdrew)
* Juan Manuel Cerúndolo (first round)
* Gijs Brouwer (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 | Final | Final | Final | Final |
| | Tomáš Macháč | 4 | 1 | | | | |
| 3 | Daniel Elahi Galán | 6 | 6 | | | | |
| 3 | Daniel Elahi Galán | 6 | 6 | 3 | Daniel Elahi Galán | 6$^1$ | 1 |
| | | | | 5 | Daniel Altmaier | 7$^7$ | 6 |
| 5 | Daniel Altmaier | 6 | 6 | 5 | Daniel Altmaier | 7$^7$ | 6 |
| | Enzo Couacaud | 2 | 2 | | | | |

### 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 | J Kubler | 6 | 6 | | | | | | | | | | | | | | |
| | T-l Wu | 4 | 3 | | 1 | J Kubler | 6 | 6 | | | | | | | | | |
| Alt | S-c Hong | 6 | 6 | | Alt | S-c Hong | 3 | 4 | | | | | | | | | |
| LL | Z Svajda | 0 | 0 | | | | | | | 1 | J Kubler | 4 | 2 | | | | |
| WC | T Kodat | 6 | 1 | 7 | | | | | | | T Macháč | 6 | 6 | | | | |
| | R Noguchi | 3 | 6 | 5 | WC | T Kodat | 4 | 6 | 1 | | | | | | | | |
| | T Macháč | 6 | 6 | | | T Macháč | 6 | 1 | 6 | | | | | | | | |
| 8 | G Brouwer | 3 | 2 | | | | | | | | | | | | T Macháč | 4 | 1 |
| 3 | DE Galán | 6 | 6 | | | | | | | | | | | 3 | DE Galán | 6 | 6 |
| | J Shang | 3 | 2 | | 3 | DE Galán | 6 | 3 | | | | | | | | | |
| Q | T Boyer | 3 | 6 | 7$^7$ | Q | T Boyer | 4 | 0$^r$ | | | | | | | | | |
| | J Sock | 6 | 4 | 6$^3$ | | | | | | 3 | DE Galán | 6 | 7$^7$ | | | | |
| Q | M Alves | 4 | 6$^6$ | | | | | | | | A Vukic | 2 | 6$^3$ | | | | |
| | C Ugo Carabelli | 6 | 7$^8$ | | | C Ugo Carabelli | 6$^6$ | 0 | | | | | | | | | |
| | A Vukic | 6 | 6 | | | A Vukic | 7$^8$ | 6 | | | | | | | | | |
| Q | D Popko | 1 | 1 | | | | | | | | | | | | | | |

### 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 |
| 5 | D Altmaier | 6$^5$ | 6 | 7 | | | | | | | | | | | | | | |
| Q | M Damm | 7$^7$ | 3 | 5 | 5 | D Altmaier | 7 | 6 | | | | | | | | | | |
| | Z Bergs | 6 | 7 | | | Z Bergs | 5 | 4 | | | | | | | | | | |
| Q | Luca Potenza | 3 | 5 | | | | | | | 5 | D Altmaier | 5 | | | | | | |
| | F Díaz Acosta | 6 | 2 | 6$^5$ | | | | | | Alt | G Diallo | 2$^r$ | | | | | | |
| Alt | G Diallo | 3 | 6 | 7$^7$ | Alt | G Diallo | 6 | 6 | | | | | | | | | | |
| Alt | M Krueger | 7 | 6 | | Alt | M Krueger | 2 | 4 | | | | | | | | | | |
| 4 | E Gómez | 5 | 3 | | | | | | | | | | | | 5 | D Altmaier | 6 | 6 |
| 7 | JM Cerúndolo | 4 | 5 | | | | | | | | | | | | | E Couacaud | 2 | 2 |
| WC | B Fratangelo | 6 | 7 | | WC | B Fratangelo | 6 | 3 | 6$^0$ | | | | | | | | | |
| Alt | GA Olivieri | 6 | 4 | 7 | Alt | GA Olivieri | 3 | 6 | 7$^7$ | | | | | | | | | |
| WC | C Harrison | 4 | 6 | 5 | | | | | | Alt | GA Olivieri | 2 | 6 | 6$^6$ | | | | |
| | D Kudla | 1$^r$ | | | | | | | | | E Couacaud | 6 | 1 | 7$^8$ | | | | |
| | E Couacaud | 5 | | | | E Couacaud | 6 | 6 | | | | | | | | | | |
| Q | A Rybakov | 4 | 6$^1$ | | 2 | Zh Zhang | 3 | 3 | | | | | | | | | | |
| 2 | Zh Zhang | 6 | 7$^7$ | | | | | | | | | | | | | | | |