# 2023 Murcia Open – Singles

Tseng Chun-hsin was the defending champion but chose not to defend his title.
Matteo Arnaldi won the title after defeating Borna Gojo 6–4, 7–6$^{(7–4)}$ in the final.

## Seeds

* Borna Gojo (final)
* Matteo Arnaldi (champion)
* Raúl Brancaccio (first round)
* Kaichi Uchida (first round)
* Alexander Ritschard (second round)
* Andrea Collarini (second round)
* Henri Laaksonen (withdrew)
* Lorenzo Giustino (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 |
| 1 | Borna Gojo | 7$^7$ | 6$^3$ | 6 | | | | |
| Q | Pablo Llamas Ruiz | 6$^4$ | 7$^7$ | 4 | | | | |
| Q | Pablo Llamas Ruiz | 6$^4$ | 7$^7$ | 4 | 1 | Borna Gojo | 4 | 6$^4$ |
| | | | | | 2 | Matteo Arnaldi | 6 | 7$^7$ |
| | Marco Trungelliti | 6$^4$ | 4 | | 2 | Matteo Arnaldi | 6 | 7$^7$ |
| 2 | Matteo Arnaldi | 7$^7$ | 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 | Semifinals |
| 1 | B Gojo | 6 | 6 | | | | | | | | | | | | | | | | |
| | N Álvarez Varona | 3 | 2 | | 1 | B Gojo | 7$^8$ | 3 | 7$^7$ | | | | | | | | | | |
| | I Gakhov | 7$^7$ | 6 | | | I Gakhov | 6$^6$ | 6 | 6$^5$ | | | | | | | | | | |
| WC | M Landaluce | 6$^4$ | 4 | | | | | | | 1 | B Gojo | 6 | 2 | 6 | | | | | |
| Q | J de Jong | 6 | 6 | | | | | | | Q | J de Jong | 1 | 6 | 3 | | | | | |
| Q | C Sánchez Jover | 4 | 3 | | Q | J de Jong | 6 | 6 | | | | | | | | | | | |
| | M Geerts | 6 | 4 | 3 | 5 | A Ritschard | 4 | 1 | | | | | | | | | | | |
| 5 | A Ritschard | 4 | 6 | 6 | | | | | | | | | | | 1 | B Gojo | 7$^7$ | 6$^3$ | 6 |
| 4 | K Uchida | 4 | 6$^7$ | | | | | | | | | | | | Q | P Llamas Ruiz | 6$^4$ | 7$^7$ | 4 |
| | M Polmans | 6 | 7$^9$ | | | M Polmans | 3 | 6 | 3 | | | | | | | | | | |
| | D Dutra da Silva | 7 | 4 | 7 | | D Dutra da Silva | 6 | 4 | 6 | | | | | | | | | | |
| | Gerard Campana Lee | 5 | 6 | 5 | | | | | | | D Dutra da Silva | 3 | 1 | | | | | | |
| | A Shelbayh | 7$^7$ | 6 | | | | | | | Q | P Llamas Ruiz | 6 | 6 | | | | | | |
| Alt | J Domingues | 6$^3$ | 4 | | | A Shelbayh | 6$^4$ | 6$^5$ | | | | | | | | | | | |
| Q | P Llamas Ruiz | 6 | 6 | | Q | P Llamas Ruiz | 7$^7$ | 7$^7$ | | | | | | | | | | | |
| 8 | L Giustino | 2 | 2 | | | | | | | | | | | | | | | | |

### 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 |
| 6 | A Collarini | 6 | 6 | | | | | | | | | | | | | | |
| Q | D Mérida | 2 | 2 | | 6 | A Collarini | 6 | 2 | 3 | | | | | | | | |
| WC | K Edmund | 6 | 3 | 3 | | M Trungelliti | 4 | 6 | 6 | | | | | | | | |
| | M Trungelliti | 1 | 6 | 6 | | | | | | | M Trungelliti | 6 | 6 | | | | |
| LL | V Durasovic | 7$^7$ | 3 | | | | | | | LL | V Durasovic | 4 | 4 | | | | |
| | O Roca Batalla | 6$^2$ | 1$^r$ | | LL | V Durasovic | 7$^9$ | 6 | | | | | | | | | |
| Q | A Moro Cañas | 6 | 6 | | Q | A Moro Cañas | 6$^7$ | 4 | | | | | | | | | |
| 3 | R Brancaccio | 3 | 4 | | | | | | | | | | | | M Trungelliti | 6$^4$ | 4 |
| LL | Á López San Martín | 6 | 6$^2$ | 6 | | | | | | | | | | 2 | M Arnaldi | 7$^7$ | 6 |
| Q | E Butvilas | 2 | 7$^7$ | 2 | LL | Á López San Martín | 1 | 6$^r$ | | | | | | | | | |
| | G Debru | 2 | 3 | | | M Kukushkin | 6 | 6 | | | | | | | | | |
| | M Kukushkin | 6 | 6 | | | | | | | | M Kukushkin | 4 | 1 | | | | |
| | O Jasika | 4 | 4 | | | | | | | 2 | M Arnaldi | 6 | 6 | | | | |
| | K Coppejans | 6 | 6 | | | K Coppejans | 6 | 4 | 4 | | | | | | | | |
| WC | F López | 3 | 6$^4$ | | 2 | M Arnaldi | 3 | 6 | 6 | | | | | | | | |
| 2 | M Arnaldi | 6 | 7$^7$ | | | | | | | | | | | | | | |