# 2023 Tenerife Challenger – Singles

Tallon Griekspoor was the defending champion but chose not to defend his title.
Alexander Shevchenko won the title after defeating Sebastian Ofner 7–5, 6–2 in the final.

## Seeds

* Radu Albot (first round)
* Francesco Passaro (quarterfinals)
* Borna Gojo (first round)
* Manuel Guinard (first round)
* Alexander Shevchenko (champion)
* Luca Nardi (first round)
* Flavio Cobolli (second round)
* Carlos Taberner (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 | Final | Final | Final | Final |
| | Francesco Maestrelli | 4 | 3 | | | | |
| 5 | Alexander Shevchenko | 6 | 6 | | | | |
| 5 | Alexander Shevchenko | 6 | 6 | 5 | Alexander Shevchenko | 7 | 6 |
| | | | | | Sebastian Ofner | 5 | 2 |
| | Sebastian Ofner | 6 | 6 | | Sebastian Ofner | 5 | 2 |
| Q | Máté Valkusz | 3 | 4 | | | | |

### Top 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 |
| 1 | R Albot | 3 | 4 | | | | | | | | | | | | | | |
| | N Moreno de Alboran | 6 | 6 | | | N Moreno de Alboran | 6$^4$ | 5 | | | | | | | | | |
| Q | U Blanch | 2 | 3 | | WC | M Gigante | 7$^7$ | 7 | | | | | | | | | |
| WC | M Gigante | 6 | 6 | | | | | | WC | M Gigante | 6 | 1 | 3 | | | | |
| | F Maestrelli | 4 | 7 | 7$^8$ | | | | | | F Maestrelli | 1 | 6 | 6 | | | | |
| Q | Lucas Gerch | 6 | 5 | 6$^6$ | | F Maestrelli | 6 | 7 | | | | | | | | | |
| | N Milojević | 1 | 2 | | 7 | F Cobolli | 3 | 5 | | | | | | | | | |
| 7 | F Cobolli | 6 | 6 | | | | | | | | | | | | F Maestrelli | 4 | 3 |
| 3 | B Gojo | 3 | 2 | | | | | | | | | | | 5 | A Shevchenko | 6 | 6 |
| | K Coppejans | 6 | 6 | | | K Coppejans | 3 | 3 | | | | | | | | | |
| | S Kozlov | 6$^2$ | 6 | 1$^r$ | Q | L Giustino | 6 | 6 | | | | | | | | | |
| Q | L Giustino | 7$^7$ | 2 | 4 | | | | | Q | L Giustino | 4 | 5 | | | | | |
| | S Rodríguez Taverna | 2 | 6$^5$ | | | | | | 5 | A Shevchenko | 6 | 7 | | | | | |
| | N Hardt | 6 | 7$^7$ | | | N Hardt | 4 | 4 | | | | | | | | | |
| Q | E Gulbis | 4 | 3 | | 5 | A Shevchenko | 6 | 6 | | | | | | | | | |
| 5 | A Shevchenko | 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 | Semifinals | Semifinals | Semifinals | Semifinals |
| 6 | L Nardi | 6$^9$ | 7$^7$ | 4 | | | | | | | | | | | | |
| | S Ofner | 7$^{11}$ | 6$^1$ | 6 | | S Ofner | 6 | 6 | | | | | | | | |
| | F Marozsán | 7$^{11}$ | 3 | 6 | | F Marozsán | 4 | 4 | | | | | | | | |
| WC | A Moro Cañas | 6$^9$ | 6 | 4 | | | | | | S Ofner | 6 | 6 | | | | |
| | G Mager | 6 | 6 | | | | | | | R Bonadio | 4 | 2 | | | | |
| | L Rosol | 2 | 3 | | | G Mager | 2 | 4 | | | | | | | | |
| | R Bonadio | 3 | 6 | 6 | | R Bonadio | 6 | 6 | | | | | | | | |
| 4 | M Guinard | 6 | 4 | 4 | | | | | | | | | | S Ofner | 6 | 6 |
| 8 | C Taberner | 6$^5$ | 3 | | | | | | | | | | Q | M Valkusz | 3 | 4 |
| Q | M Valkusz | 7$^7$ | 6 | | Q | M Valkusz | 6 | 6 | | | | | | | | |
| | M Trungelliti | 7$^7$ | 2 | 7 | | M Trungelliti | 1 | 4 | | | | | | | | |
| Q | L Neumayer | 6$^3$ | 6 | 5 | | | | | Q | M Valkusz | 6 | 6 | | | | |
| | K Uchida | 7$^7$ | 3 | 6 | | | | | 2 | F Passaro | 4 | 3 | | | | |
| | B Paire | 6$^5$ | 6 | 3 | | K Uchida | 3 | 1 | | | | | | | | |
| WC | N Sánchez Izquierdo | 1 | 4 | | 2 | F Passaro | 6 | 6 | | | | | | | | |
| 2 | F Passaro | 6 | 6 | | | | | | | | | | | | | |