# 2023 Città di Como Challenger – Singles

Cedrik-Marcel Stebe was the defending champion but chose not to defend his title.
Thiago Seyboth Wild won the title after defeating Pedro Martínez 5–7, 6–2, 6–3 in the final.

## Seeds

* Thiago Seyboth Wild (champion)
* Zsombor Piros (second round)
* Thiago Monteiro (first round)
* Benoît Paire (semifinals)
* Pedro Martínez (final)
* Flavio Cobolli (first round)
* Fabio Fognini (second round, retired)
* Ivan Gakhov (second round, retired)

## 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 | Final |
| 1 | Thiago Seyboth Wild | 7 | 6 | | | | | |
| 4 | Benoît Paire | 5 | 3 | | | | | |
| 4 | Benoît Paire | 5 | 3 | 1 | Thiago Seyboth Wild | 5 | 6 | 6 |
| | | | | 5 | Pedro Martínez | 7 | 2 | 3 |
| WC | Stefano Napolitano | 2 | 6$^4$ | 5 | Pedro Martínez | 7 | 2 | 3 |
| 5 | Pedro Martínez | 6 | 7$^7$ | | | | | |

### 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 | T Seyboth Wild | 6 | 6 | | | | | | | | | | | | | | | |
| | F Agamenone | 3 | 4 | | 1 | T Seyboth Wild | 6 | 6 | | | | | | | | | | |
| Alt | N Sánchez Izquierdo | 3 | 7 | 3 | Alt | L Neumayer | 3 | 4 | | | | | | | | | | |
| Alt | L Neumayer | 6 | 5 | 6 | | | | | | 1 | T Seyboth Wild | 6 | 6 | | | | | |
| | J Sels | 2 | 2 | | | | | | | | R Molleker | 1 | 3 | | | | | |
| | A Giannessi | 6 | 6 | | | A Giannessi | 3 | 1 | | | | | | | | | | |
| | R Molleker | 6 | 6 | | | R Molleker | 6 | 6 | | | | | | | | | | |
| 6 | F Cobolli | 3 | 3 | | | | | | | | | | | | 1 | T Seyboth Wild | 7 | 6 |
| 4 | B Paire | 6 | 6 | | | | | | | | | | | | 4 | B Paire | 5 | 3 |
| Q | C Hemery | 1 | 0 | | 4 | B Paire | 5 | 6 | 3 | | | | | | | | | |
| | N Fatić | 2 | 4 | | WC | L Carboni | 7 | 2 | 0$^r$ | | | | | | | | | |
| WC | Lorenzo Carboni | 6 | 6 | | | | | | | 4 | B Paire | 4 | 6 | 6 | | | | |
| | D Kuzmanov | 6 | 6 | | | | | | | | D Kuzmanov | 6 | 4 | 3 | | | | |
| Q | M Zekić | 2 | 3 | | | D Kuzmanov | 6 | 2 | | | | | | | | | | |
| | A Martin | 4 | 1 | | 8 | I Gakhov | 2 | 0$^r$ | | | | | | | | | | |
| 8 | I Gakhov | 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 |
| 7/WC | F Fognini | 3 | 6 | 6 | | | | | | | | | | | | | |
| | Gerard Campana Lee | 6 | 4 | 0 | 7/WC | F Fognini | 5 | 0$^r$ | | | | | | | | | |
| | M Gigante | 3 | 0 | | WC | S Napolitano | 7 | 3 | | | | | | | | | |
| WC | S Napolitano | 6 | 6 | | | | | | WC | S Napolitano | 6 | 2 | 6 | | | | |
| Q | M Bourgue | 7 | 6 | | | | | | Alt | L Darderi | 3 | 6 | 3 | | | | |
| | D Ajduković | 5 | 1 | | Q | M Bourgue | 6$^2$ | 2 | | | | | | | | | |
| Alt | L Darderi | 6 | 6 | | Alt | L Darderi | 7$^7$ | 6 | | | | | | | | | |
| 3 | T Monteiro | 3 | 2 | | | | | | | | | | | WC | S Napolitano | 2 | 6$^4$ |
| 5 | P Martínez | 6 | 6 | | | | | | | | | | | 5 | P Martínez | 6 | 7$^7$ |
| | Edoardo Lavagno | 0 | 1 | | 5 | P Martínez | 6 | 7$^7$ | | | | | | | | | |
| Q | V Royer | 6 | 3 | 4 | Q | S Vincent Ruggeri | 4 | 6$^4$ | | | | | | | | | |
| Q | Samuel Vincent Ruggeri | 3 | 6 | 6 | | | | | 5 | P Martínez | 6 | 6 | | | | | |
| | S Nagal | 6 | 0 | 7$^7$ | | | | | | S Nagal | 4 | 4 | | | | | |
| | R Bonadio | 4 | 6 | 6$^4$ | | S Nagal | 6 | 6 | | | | | | | | | |
| Q | L Wessels | 2 | 4 | | 2 | Z Piros | 3 | 4 | | | | | | | | | |
| 2 | Z Piros | 6 | 6 | | | | | | | | | | | | | | |