# 2023 Tenerife Challenger II – Singles

Alexander Shevchenko was the defending champion but withdrew before his first round match.
Matteo Arnaldi won the title after defeating Raúl Brancaccio 6–1, 6–2 in the final.

## Seeds

* Francesco Passaro (second round)
* Matteo Arnaldi (champion)
* Raúl Brancaccio (final)
* Filip Misolic (second round)
* Ryan Peniston (second round)
* Alexander Shevchenko (withdrew)
* Carlos Taberner (quarterfinals)
* Benoît Paire (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 |
| | Lloyd Harris | | | | | | |
| 3 | Raúl Brancaccio | w/o | | | | | |
| 3 | Raúl Brancaccio | w/o | | 3 | Raúl Brancaccio | 1 | 2 |
| | | | | 2 | Matteo Arnaldi | 6 | 6 |
| WC | Nicolás Álvarez Varona | 3 | 4 | 2 | Matteo Arnaldi | 6 | 6 |
| 2 | Matteo Arnaldi | 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 | Quarterfinals | Semifinals | Semifinals | Semifinals |
| 1 | F Passaro | 2 | 6 | 6 | | | | | | | | | | | | | |
| | Y Demin | 6 | 3 | 4 | 1 | F Passaro | 6 | 4 | 5 | | | | | | | | |
| | I Gakhov | 0 | 4 | | | L Harris | 3 | 6 | 7 | | | | | | | | |
| | L Harris | 6 | 6 | | | | | | | | L Harris | 7$^7$ | 6 | | | | |
| PR | R Marcora | 7$^7$ | 6 | | | | | | | PR | R Marcora | 6$^4$ | 3 | | | | |
| | M Zekić | 6$^3$ | 4 | | PR | R Marcora | 1 | 7 | 6 | | | | | | | | |
| | S Rodríguez Taverna | 6 | 6 | | | S Rodríguez Taverna | 6 | 5 | 3 | | | | | | | | |
| 8 | B Paire | 2 | 4 | | | | | | | | | | | | | L Harris | |
| 3 | R Brancaccio | 0 | 7 | 6 | | | | | | | | | | | 3 | R Brancaccio | w/o |
| | N Milojević | 6 | 5 | 2 | 3 | R Brancaccio | 6 | 6 | | | | | | | | | |
| Q | D Cox | 7$^7$ | 3 | 6 | Q | D Cox | 3 | 3 | | | | | | | | | |
| | G Mager | 6$^3$ | 6 | 2 | | | | | | 3 | R Brancaccio | 6 | 6$^6$ | 6 | | | |
| WC | M Landaluce | 5 | 4 | | | | | | | 7 | C Taberner | 3 | 7$^8$ | 0 | | | |
| | R Bonadio | 7 | 6 | | | R Bonadio | 4 | 0 | | | | | | | | | |
| Q | GM Moroni | 5 | 3 | | 7 | C Taberner | 6 | 6 | | | | | | | | | |
| 7 | C Taberner | 7 | 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 | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals |
| 5 | R Peniston | 3 | 7 | 7$^7$ | | | | | | | | | | | | | | |
| | J Clarke | 6 | 5 | 6$^5$ | 5 | R Peniston | 7 | 2 | 1 | | | | | | | | | |
| WC | N Álvarez Varona | 6 | 7 | | WC | N Álvarez Varona | 5 | 6 | 6 | | | | | | | | | |
| WC | S Caruso | 3 | 5 | | | | | | | WC | N Álvarez Varona | 1 | 6 | 6 | | | | |
| Q | A Moro Cañas | 7 | 6 | | | | | | | Q | A Moro Cañas | 6 | 2 | 3 | | | | |
| | F Maestrelli | 5 | 1 | | Q | A Moro Cañas | 7 | 7 | | | | | | | | | | |
| | C-M Stebe | 1 | 1 | | 4 | F Misolic | 5 | 5 | | | | | | | | | | |
| 4 | F Misolic | 6 | 6 | | | | | | | | | | | | WC | N Álvarez Varona | 3 | 4 |
| LL | L Giustino | 2 | 0 | | | | | | | | | | | | 2 | M Arnaldi | 6 | 6 |
| | O Krutykh | 6 | 6 | | | O Krutykh | 6 | 6$^5$ | 6 | | | | | | | | | |
| | L Rosol | 1 | 7 | 6$^3$ | Q | V Royer | 4 | 7$^7$ | 3 | | | | | | | | | |
| Q | V Royer | 6 | 5 | 7$^7$ | | | | | | | O Krutykh | 4 | 1 | | | | | |
| Q | M Gigante | 4 | 6 | 1 | | | | | | 2 | M Arnaldi | 6 | 6 | | | | | |
| Q | S Mochizuki | 6 | 2 | 6 | Q | S Mochizuki | 0 | 6 | 3 | | | | | | | | | |
| Alt | A Giannessi | 3 | 7$^7$ | 3 | 2 | M Arnaldi | 6 | 2 | 6 | | | | | | | | | |
| 2 | M Arnaldi | 6 | 6$^5$ | 6 | | | | | | | | | | | | | | |