# 2023 Maspalomas Challenger – Singles

Dušan Lajović was the defending champion but chose not to defend his title.
Pedro Martínez won the title after defeating Kilian Feldbausch 6–4, 4–6, 6–3 in the final.

## Seeds

* Pedro Martínez (champion)
* Sumit Nagal (second round)
* Filip Misolic (semifinals)
* Ivan Gakhov (second round)
* Oriol Roca Batalla (first round)
* Raúl Brancaccio (second round)
* Daniel Rincón (semifinals)
* Rudolf Molleker (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 | Final |
| 1 | Pedro Martínez | 3 | 6 | 6 | | | | | |
| 3 | Filip Misolic | 6 | 3 | 4 | | | | | |
| 3 | Filip Misolic | 6 | 3 | 4 | 1 | Pedro Martínez | 6 | 4 | 6 |
| | | | | | Q | Kilian Feldbausch | 4 | 6 | 3 |
| 7 | Daniel Rincón | 3 | 1 | | Q | Kilian Feldbausch | 4 | 6 | 3 |
| Q | Kilian Feldbausch | 6 | 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 | Semifinals | Semifinals | Semifinals | Semifinals | Semifinals |
| 1 | P Martínez | 6 | 6 | | | | | | | | | | | | | | | |
| | ND Ionel | 1 | 2 | | 1 | P Martínez | 6 | 6 | | | | | | | | | | |
| PR | Carlos López Montagud | 6 | 6$^7$ | 4 | Q | V Gaubas | 3 | 1 | | | | | | | | | | |
| Q | V Gaubas | 2 | 7$^9$ | 6 | | | | | | 1 | P Martínez | 6 | 6 | | | | | |
| Q | Svyatoslav Gulin | 6 | 3 | | | | | | | Q | S Gulin | 4 | 4 | | | | | |
| | N Fatić | 4 | 2$^r$ | | Q | S Gulin | 7 | 4 | 6 | | | | | | | | | |
| | S Diez | 4 | 2 | | 6 | R Brancaccio | 5 | 6 | 3 | | | | | | | | | |
| 6 | R Brancaccio | 6 | 6 | | | | | | | | | | | 1 | P Martínez | 3 | 6 | 6 |
| 3 | F Misolic | 6 | 6 | | | | | | | | | | | 3 | F Misolic | 6 | 3 | 4 |
| | H Squire | 3 | 4 | | 3 | F Misolic | 4 | 6 | 6 | | | | | | | | | |
| | Gerard Campana Lee | 4 | 6 | 6 | | G Campana Lee | 6 | 4 | 3 | | | | | | | | | |
| | L Giustino | 6 | 1 | 3 | | | | | | 3 | F Misolic | 6 | 6 | | | | | |
| | D Jordà Sanchis | 6 | 6 | | | | | | | | A Andreev | 3 | 3 | | | | | |
| WC | C Sánchez Jover | 1 | 3 | | | D Jordà Sanchis | 3 | 6$^5$ | | | | | | | | | | |
| | A Andreev | 6 | 7$^7$ | | | A Andreev | 6 | 7$^7$ | | | | | | | | | | |
| 5 | O Roca Batalla | 4 | 6$^3$ | | | | | | | | | | | | | | | |

### 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 |
| 7 | D Rincón | 6 | 7 | | | | | | | | | | | | | | | |
| | N Sánchez Izquierdo | 2 | 5 | | 7 | D Rincón | 7 | 6 | | | | | | | | | | |
| | L Neumayer | 3 | 3 | | | T Stodder | 5 | 3 | | | | | | | | | | |
| | Timo Stodder | 6 | 6 | | | | | | | 7 | D Rincón | 3 | 6 | 6 | | | | |
| WC | A Barroso Campos | 2 | 6 | 4 | | | | | | Q | J Forejtek | 6 | 4 | 4 | | | | |
| Q | J Forejtek | 6 | 4 | 6 | Q | J Forejtek | 2 | 6 | 6 | | | | | | | | | |
| | Edoardo Lavagno | 5 | 6$^4$ | | 4 | I Gakhov | 6 | 4 | 3 | | | | | | | | | |
| 4 | I Gakhov | 7 | 7$^7$ | | | | | | | | | | | | 7 | D Rincón | 3 | 1 |
| 8 | R Molleker | 6 | 4 | 2 | | | | | | | | | | | Q | K Feldbausch | 6 | 6 |
| | O Krutykh | 4 | 6 | 6 | | O Krutykh | 6 | 3 | 1 | | | | | | | | | |
| WC | N Álvarez Varona | 2$^r$ | | | Q | K Feldbausch | 3 | 6 | 6 | | | | | | | | | |
| Q | K Feldbausch | 4 | | | | | | | | Q | K Feldbausch | 6 | 6 | | | | | |
| Q | Imanol López Morillo | 7 | 6 | | | | | | | Q | I López Morillo | 2 | 2 | | | | | |
| Q | J Barranco Cosano | 5 | 4 | | Q | I López Morillo | 3 | 6 | 7 | | | | | | | | | |
| | A Moro Cañas | 0 | 2 | | 2 | S Nagal | 6 | 4 | 5 | | | | | | | | | |
| 2 | S Nagal | 6 | 6 | | | | | | | | | | | | | | | |