# 2023 Internazionali di Tennis Città di Todi – Singles

Pedro Cachin was the defending champion but chose not to defend his title.
Luciano Darderi won the title after defeating Clément Tabur 6–4, 6–7$^{(5–7)}$, 6–1 in the final.

## Seeds

* Zsombor Piros (second round)
* Camilo Ugo Carabelli (withdrew)
* Mariano Navone (first round)
* Duje Ajduković (second round)
* Andrea Pellegrino (first round)
* Román Andrés Burruchaga (first round)
* Luciano Darderi (champion)
* Francesco Maestrelli (semifinals)

## 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 |
| | Clément Tabur | 7 | 4 | 6 | | | | | |
| | Giovanni Fonio | 5 | 6 | 3 | | | | | |
| | Giovanni Fonio | 5 | 6 | 3 | | Clément Tabur | 4 | 7$^7$ | 1 |
| | | | | | 7 | Luciano Darderi | 6 | 6$^5$ | 6 |
| 7 | Luciano Darderi | 7$^9$ | 6 | | 7 | Luciano Darderi | 6 | 6$^5$ | 6 |
| 8 | Francesco Maestrelli | 6$^7$ | 4 | | | | | | |

### 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 | Z Piros | 6 | 6 | | | | | | | | | | | | | | | |
| | D Michalski | 2 | 4 | | 1 | Z Piros | 0 | 1 | | | | | | | | | | |
| | S Caruso | 6 | 2 | 0 | | C Tabur | 6 | 6 | | | | | | | | | | |
| | C Tabur | 4 | 6 | 6 | | | | | | | C Tabur | 6 | 3 | 7$^9$ | | | | |
| | M Geerts | 5 | 6 | 7 | | | | | | | M Echargui | 4 | 6 | 6$^7$ | | | | |
| Q | G Oradini | 7 | 3 | 5 | | M Geerts | 2 | 1 | | | | | | | | | | |
| | M Echargui | 6 | 6 | | | M Echargui | 6 | 6 | | | | | | | | | | |
| 5 | A Pellegrino | 3 | 1 | | | | | | | | | | | | C Tabur | 7 | 4 | 6 |
| 3 | M Navone | 6$^4$ | 3 | | | | | | | | | | | | G Fonio | 5 | 6 | 3 |
| WC | E Dalla Valle | 7$^7$ | 6 | | WC | E Dalla Valle | 7 | 4 | 4 | | | | | | | | | |
| Q | F Gill | 7$^{10}$ | 4 | 7$^7$ | Q | F Gill | 5 | 6 | 6 | | | | | | | | | |
| | F Forti | 6$^8$ | 6 | 6$^2$ | | | | | | Q | F Gill | 3 | 4 | | | | | |
| | G Fonio | 7$^7$ | 6 | | | | | | | | G Fonio | 6 | 6 | | | | | |
| Q | O Luz | 6$^4$ | 4 | | | G Fonio | 6 | 6$^5$ | 6 | | | | | | | | | |
| Q | J Ocleppo | 6 | 6 | | Q | J Ocleppo | 3 | 7$^7$ | 4 | | | | | | | | | |
| 6 | RA Burruchaga | 3 | 4 | | | | | | | | | | | | | | | |

### 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 | Semifinals | Semifinals | Semifinals | Semifinals |
| 7 | L Darderi | 6 | 6 | | | | | | | | | | | | | | |
| Alt | Lucas Gerch | 2 | 3 | | 7 | L Darderi | 6 | 6 | | | | | | | | | |
| Q | M Zekić | 6$^1$ | 6 | 6 | Q | M Zekić | 4 | 4 | | | | | | | | | |
| Alt | Carlos López Montagud | 7$^7$ | 3 | 4 | | | | | | 7 | L Darderi | 6 | 6 | | | | |
| Q | C Sánchez Jover | 7$^7$ | 6 | | | | | | | Q | C Sánchez Jover | 0 | 1 | | | | |
| WC | Fabrizio Andaloro | 6$^3$ | 2 | | Q | C Sánchez Jover | 6 | 7 | | | | | | | | | |
| | J Barranco Cosano | 3 | 4 | | 4 | D Ajduković | 3 | 5 | | | | | | | | | |
| 4 | D Ajduković | 6 | 6 | | | | | | | | | | | 7 | L Darderi | 7$^9$ | 6 |
| 8 | F Maestrelli | 6 | 6 | | | | | | | | | | | 8 | F Maestrelli | 6$^7$ | 4 |
| WC | Giorgio Tabacco | 1 | 4 | | 8 | F Maestrelli | 6 | 6$^4$ | 6 | | | | | | | | |
| | N Serdarušić | 6 | 7$^8$ | | | N Serdarušić | 2 | 7$^7$ | 2 | | | | | | | | |
| | O Roca Batalla | 3 | 6$^6$ | | | | | | | 8 | F Maestrelli | 7$^7$ | 6 | | | | |
| | G Debru | 6 | 7$^7$ | | | | | | | | G Debru | 6$^4$ | 4 | | | | |
| | H Squire | 3 | 6$^3$ | | | G Debru | 6 | 2 | 6 | | | | | | | | |
| | L Giustino | 6$^4$ | 0 | | LL | M Erhard | 4 | 6 | 4 | | | | | | | | |
| LL | Mathys Erhard | 7$^7$ | 6 | | | | | | | | | | | | | | |