# 2024 San Marino Open – Singles

Jaume Munar was the defending champion but chose not to defend his title.
Alexandre Müller won the title after defeating Tseng Chun-hsin 6–3, 4–6, 7–6$^{(7–3)}$ in the final.

## Seeds

* Fabio Fognini (semifinals)
* Francisco Comesaña (semifinals)
* Alexandre Müller (champion)
* Albert Ramos Viñolas (first round)
* Matteo Gigante (quarterfinals)
* Gustavo Heide (quarterfinals)
* Andrea Pellegrino (quarterfinals)
* Juan Manuel Cerúndolo (quarterfinals)

## 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 |
| 1/WC | Fabio Fognini | 2 | 5 | | | | | | |
| 3 | Alexandre Müller | 6 | 7 | | | | | | |
| 3 | Alexandre Müller | 6 | 7 | | 3 | Alexandre Müller | 6 | 4 | 7$^7$ |
| | | | | | | Tseng Chun-hsin | 3 | 6 | 6$^3$ |
| | Tseng Chun-hsin | 4 | 6 | 6 | | Tseng Chun-hsin | 3 | 6 | 6$^3$ |
| 2 | Francisco Comesaña | 6 | 1 | 3 | | | | | |

### 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/WC | F Fognini | 6$^5$ | 6 | 6 | | | | | | | | | | | | | |
| Q | P Sakamoto | 7$^7$ | 1 | 2 | 1/WC | F Fognini | 1 | 7$^7$ | 6 | | | | | | | | |
| | Samuel Vincent Ruggeri | 6 | 6 | | | S Vincent Ruggeri | 6 | 6$^5$ | 0 | | | | | | | | |
| Q | JL Reis da Silva | 4 | 1 | | | | | | | 1/WC | F Fognini | 7 | 6 | | | | |
| | V Gaubas | 3 | 2 | | | | | | | 5 | M Gigante | 5 | 2 | | | | |
| | K Jacquet | 6 | 6 | | | K Jacquet | 3 | 3 | | | | | | | | | |
| WC | Andrea Picchione | 1 | 6$^5$ | | 5 | M Gigante | 6 | 6 | | | | | | | | | |
| 5 | M Gigante | 6 | 7$^7$ | | | | | | | | | | | 1/WC | F Fognini | 2 | 5 |
| 3 | A Müller | 6 | 7$^7$ | | | | | | | | | | | 3 | A Müller | 6 | 7 |
| Q | R Bertola | 1 | 6$^3$ | | 3 | A Müller | 6 | 6 | | | | | | | | | |
| Q | M Alves | 6$^2$ | 6$^2$ | | | G Fonio | 3 | 3 | | | | | | | | | |
| | G Fonio | 7$^7$ | 7$^7$ | | | | | | | 3 | A Müller | 6 | 6 | | | | |
| | A Collarini | 3 | 6 | 3 | | | | | | 8 | JM Cerúndolo | 2 | 3 | | | | |
| WC | M Cecchinato | 6 | 3 | 6 | WC | M Cecchinato | 4 | 6$^2$ | | | | | | | | | |
| | G Bueno | 2 | 1 | | 8 | JM Cerúndolo | 6 | 7$^7$ | | | | | | | | | |
| 8 | JM Cerúndolo | 6 | 6 | | | | | | | | | | | | | | |

### 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 | Semifinals |
| 6 | G Heide | 3 | 6 | 6 | | | | | | | | | | | | | | |
| | F Misolic | 6 | 4 | 1 | 6 | G Heide | 6 | 5 | 7$^7$ | | | | | | | | | |
| LL | G Villanueva | 3 | 5 | | | N Fatić | 2 | 7 | 6$^5$ | | | | | | | | | |
| | N Fatić | 6 | 7 | | | | | | | 6 | G Heide | 6$^2$ | 2 | | | | | |
| | C-h Tseng | 6 | 6 | | | | | | | | C-h Tseng | 7$^7$ | 6 | | | | | |
| | F Maestrelli | 3 | 3 | | | C-h Tseng | 6 | 6 | | | | | | | | | | |
| Q | Carlos López Montagud | 1 | 6 | 6 | Q | C López Montagud | 4 | 3 | | | | | | | | | | |
| 4 | A Ramos Viñolas | 6 | 2 | 2 | | | | | | | | | | | C-h Tseng | 4 | 6 | 6 |
| 7 | A Pellegrino | 6 | 7 | | | | | | | | | | | 2 | F Comesaña | 6 | 1 | 3 |
| Q | Kirill Kivattsev | 4 | 5 | | 7 | A Pellegrino | 6 | 6$^1$ | 6 | | | | | | | | | |
| | B Paire | 2 | 1 | | Alt | A Weis | 1 | 7$^7$ | 2 | | | | | | | | | |
| Alt | Alexander Weis | 6 | 6 | | | | | | | 7 | A Pellegrino | 2 | 2 | | | | | |
| | N Hardt | 6 | 6 | | | | | | | 2 | F Comesaña | 6 | 6 | | | | | |
| | M Janvier | 1 | 3 | | | N Hardt | 7$^7$ | 4 | 4 | | | | | | | | | |
| LL | D Dutra da Silva | 1 | 3 | | 2 | F Comesaña | 6$^2$ | 6 | 6 | | | | | | | | | |
| 2 | F Comesaña | 6 | 6 | | | | | | | | | | | | | | | |