Stadium: Centre Court Round: 14 Ground: Clay
| Challenger San Benedetto | 2023/07/09 14:15 | Dmitry Popko v Marcelo Zormann | 7-5,6-7,6-2 |
| Challenger Florianopolis | 2023/04/16 18:50 | Thiago Cigarran v Marcelo Zormann | 4-6,7-6,3-6 |
| Challenger Vina del Mar | 2023/03/12 19:30 | Federico Gaio v Marcelo Zormann | 6-2,6-3 |
| Challenger Santiago | 2023/03/05 16:45 | Alvaro Lopez San Martin v Marcelo Zormann | 6-4,7-6 |
| Challenger Piracicaba | 2023/01/15 12:30 | Marcelo Zormann v Edoardo Lavagno | 6-3,4-6,3-6 |
| UTR Pro Rio de Janeiro | 2023/01/02 16:37 | Marcelo Zormann v Enrique Bogo | 6-1,6-2 |
| ITF M25 Vacaria | 2022/12/02 14:20 | Gustavo Heide v Marcelo Zormann | 6-4,7-6 |
| ITF M25 Vacaria | 2022/12/01 17:35 | Lorenzo Joaquin Rodriguez v Marcelo Zormann | 3-6,6-7 |
| Challenger Zug | 2023/07/25 12:05 | Ergi Kirkin v Otto Virtanen | 6-7,4-6 |
| Challenger Zug | 2023/07/24 11:50 | Ergi Kirkin v Damien Wenger | 2-6,6-3,6-3 |
| Challenger Zug | 2023/07/23 13:00 | Henri Laaksonen v Ergi Kirkin | 4-6,2-6 |
| Challenger Tampere | 2023/07/19 10:15 | Ergi Kirkin v Kimmer Coppejans | 6-3,5-7,2-6 |
| Challenger Tampere | 2023/07/17 11:05 | Vladyslav Orlov v Ergi Kirkin | 6-7,3-6 |
| Challenger Tampere | 2023/07/16 12:20 | Peetu Pohjola v Ergi Kirkin | 4-6,2-6 |
| ITF M25 The Hague | 2023/07/05 17:40 | Deney Wassermann v Ergi Kirkin | 7-6,7-6 |
| ITF M15 Belgrade | 2023/07/02 08:00 | Miljan Zekic v Ergi Kirkin | 6-3,5-7,3-6 |