# 2022 AON Open Challenger – Singles

Lorenzo Sonego was the defending champion but chose not to defend his title.
Thiago Monteiro won the title after defeating Andrea Pellegrino 6–1, 7–6$^{(7–2)}$ in the final.

## Seeds

* Albert Ramos Viñolas (quarterfinals)
* Thiago Monteiro (champion)
* Corentin Moutet (second round)
* Dušan Lajović (semifinals)
* Pablo Andújar (second round)
* Federico Delbonis (first round)
* Francesco Passaro (second round)
* Marco Cecchinato (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 | Final | Final | Final | Final |
| | Andrea Pellegrino | 6 | 7$^7$ | | | | |
| 4 | Dušan Lajović | 4 | 6$^0$ | | | | |
| 4 | Dušan Lajović | 4 | 6$^0$ | | Andrea Pellegrino | 1 | 6$^2$ |
| | | | | 2 | Thiago Monteiro | 6 | 7$^7$ |
| Alt | Adrian Andreev | 2 | 4 | 2 | Thiago Monteiro | 6 | 7$^7$ |
| 2 | Thiago Monteiro | 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 | Semifinals |
| 1/WC | A Ramos Viñolas | 2 | 7$^7$ | 6 | | | | | | | | | | | | | | |
| Q | Martin Krumich | 6 | 6$^3$ | 0 | 1/WC | A Ramos Viñolas | 3 | 6 | 6 | | | | | | | | | |
| | A Vavassori | 3 | 6 | 7$^7$ | | A Vavassori | 6 | 3 | 3 | | | | | | | | | |
| | M Marterer | 6 | 4 | 6$^2$ | | | | | | 1/WC | A Ramos Viñolas | 6 | 6$^5$ | 6$^2$ | | | | |
| | G Zeppieri | 6 | 1 | 3 | | | | | | | A Pellegrino | 2 | 7$^7$ | 7$^7$ | | | | |
| | A Pellegrino | 2 | 6 | 6 | | A Pellegrino | 6 | 6 | | | | | | | | | | |
| | A Giannessi | 4 | 6 | 2 | 5 | P Andújar | 4 | 2 | | | | | | | | | | |
| 5 | P Andújar | 6 | 4 | 6 | | | | | | | | | | | | A Pellegrino | 6 | 7$^7$ |
| 4 | D Lajović | 6 | 7$^7$ | | | | | | | | | | | | 4 | D Lajović | 4 | 6$^0$ |
| | G Mager | 4 | 6$^4$ | | 4 | D Lajović | 6 | 6 | | | | | | | | | | |
| Q | Gabriele Piraino | 3 | 6 | 6 | Q | G Piraino | 3 | 2 | | | | | | | | | | |
| Q | M Martineau | 6 | 3 | 4 | | | | | | 4 | D Lajović | 6 | 6 | | | | | |
| Q | Sandro Kopp | 5 | 2 | | | | | | | 8 | M Cecchinato | 2 | 2 | | | | | |
| | M Arnaldi | 7 | 6 | | | M Arnaldi | 4 | 5 | | | | | | | | | | |
| Alt | L Neumayer | 4 | 3 | | 8 | M Cecchinato | 6 | 7 | | | | | | | | | | |
| 8 | M Cecchinato | 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 | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals |
| 7 | F Passaro | 7 | 6 | | | | | | | | | | | | | | | |
| WC | F Arnaboldi | 5 | 4 | | 7 | F Passaro | 2 | 6 | 1 | | | | | | | | | |
| LL | Oscar José Gutierrez | 1 | 2 | | | R Brancaccio | 6 | 3 | 6 | | | | | | | | | |
| | R Brancaccio | 6 | 6 | | | | | | | | R Brancaccio | 2 | 4 | | | | | |
| Alt | A Andreev | 7$^7$ | 1 | 6 | | | | | | Alt | A Andreev | 6 | 6 | | | | | |
| | S Caruso | 6$^3$ | 6 | 4 | Alt | A Andreev | 3 | 7$^8$ | 6 | | | | | | | | | |
| WC | G Ferrari | 2 | 7$^8$ | 3 | 3 | C Moutet | 6 | 6$^6$ | 4 | | | | | | | | | |
| 3 | C Moutet | 6 | 6$^6$ | 6 | | | | | | | | | | | Alt | A Andreev | 2 | 4 |
| 6 | F Delbonis | 6 | 3 | 4 | | | | | | | | | | | 2 | T Monteiro | 6 | 6 |
| PR | S Ofner | 3 | 6 | 6 | PR | S Ofner | 2 | 6 | 6 | | | | | | | | | |
| Q | M Gigante | 6 | 1 | 6 | Q | M Gigante | 6 | 1 | 3 | | | | | | | | | |
| | A Vatutin | 1 | 6 | 1 | | | | | | PR | S Ofner | 7$^7$ | 4 | 6$^4$ | | | | |
| Q | Andrey Chepelev | 3 | 6 | 4 | | | | | | 2 | T Monteiro | 6$^4$ | 6 | 7$^7$ | | | | |
| | D Kuzmanov | 6 | 2 | 6 | | D Kuzmanov | 6$^4$ | 3 | | | | | | | | | | |
| | S Travaglia | 6 | 2 | 4 | 2 | T Monteiro | 7$^7$ | 6 | | | | | | | | | | |
| 2 | T Monteiro | 4 | 6 | 6 | | | | | | | | | | | | | | |