Stadium: Campo 14 Round: 19 Ground: Clay
| Challenger Florianopolis | 2023/04/21 16:15 | Alessandro Giannessi v Benjamin Hassan | 6-3,4-6,6-7 |
| Challenger Florianopolis | 2023/04/20 13:00 | Alessandro Giannessi v Pedro Boscardin Dias | 6-4,6-4 |
| Challenger Florianopolis | 2023/04/19 13:00 | Alessandro Giannessi v Juan Bautista Otegui | 6-2,6-3 |
| Challenger Madrid | 2023/04/09 12:30 | Alessandro Giannessi v David Jorda Sanchis | 6-3,6-7,3-6 |
| ATP Estoril | 2023/04/03 17:50 | Alessandro Giannessi v Fabio Fognini | 2-6,1-6 |
| ATP Estoril | 2023/04/02 11:00 | Fabian Marozsan v Alessandro Giannessi | 6-4,6-7,4-6 |
| ATP Estoril | 2023/04/01 12:15 | Alessandro Giannessi v Oleksii Krutykh | 1-6,7-5,6-1 |
| Challenger Sanremo | 2023/03/28 10:20 | Giulio Zeppieri v Alessandro Giannessi | 6-1,6-1 |
| Challenger Cagliari | 2023/05/01 09:40 | Aleksandr Nedovyesov v Alexander Erler | 3-6,6-3,5-7 |
| Challenger Helsinky | 2022/11/14 11:00 | Mikhail Kukushkin v Alexander Erler | 6-2,7-6 |
| Challenger Helsinky | 2022/11/13 09:00 | Alexander Erler v Gauthier Onclin | 7-6,7-6 |
| ATP Vídeň | 2022/10/22 10:20 | Alexander Erler v Joao Sousa | 6-7,5-7 |
| ATP Antverpy | 2022/10/17 10:00 | Tim Van Rijthoven v Alexander Erler | 7-6,6-3 |
| ATP Antverpy | 2022/10/16 10:00 | Alexander Erler v Evan Furness | 6-1,6-4 |
| Challenger Sibiu | 2022/09/19 11:00 | Rudolf Molleker v Alexander Erler | 6-1,6-1 |
| Challenger Sibiu | 2022/09/18 14:05 | Alexander Erler v Marko Topo | 7-5,6-3 |