Stadium: Idrottens Hus Round: 168 Ground: Hardcourt indoor
| Challenger Maia | 2023/11/29 12:35 | Karl Friberg v Andrea Vavassori | 2-6,3-6 |
| Challenger Maia | 2023/11/28 12:15 | Sebastian Fanselow v Karl Friberg | 6-3,3-6,4-6 |
| Challenger Maia | 2023/11/27 11:00 | Karl Friberg v Aleksandr Braynin | 5-7,6-1,6-3 |
| Challenger Maia | 2023/11/26 13:10 | Karl Friberg v Tiago Pereira | 4-6,6-3,6-1 |
| Challenger Danderyd | 2023/11/15 17:30 | Denis Yevseyev v Karl Friberg | 6-2,6-3 |
| ITF M25 Trnava | 2023/11/12 10:00 | Karl Friberg v Lukas Pokorny | 6-4,6-4 |
| ITF M25 Trnava | 2023/11/11 09:00 | Karl Friberg v Remy Bertola | 7-5,6-4 |
| ITF M25 Trnava | 2023/11/10 09:00 | Matej Vocel v Karl Friberg | 4-6,2-6 |
| Challenger Montevideo | 2023/11/19 01:15 | Hugo Dellien v Thiago Monteiro | 6-7,6-1,3-6 |
| Challenger Montevideo | 2023/11/17 21:25 | Thiago Monteiro v Camilo Ugo Carabelli | 6-1,4-6,6-4 |
| Challenger Montevideo | 2023/11/15 17:00 | Santiago Rodriguez Taverna v Thiago Monteiro | 5-7,3-6 |
| Challenger Montevideo | 2023/11/14 15:00 | Murkel Dellien v Thiago Monteiro | 0-6,4-6 |
| Challenger Santa Fe | 2023/10/20 18:35 | Mariano Navone v Thiago Monteiro | 7-5,6-4 |
| Challenger Santa Fe | 2023/10/19 18:45 | Facundo Bagnis v Thiago Monteiro | 2-6,0-6 |
| Challenger Santa Fe | 2023/10/18 18:00 | Carlos Taberner v Thiago Monteiro | 4-6,6-4,1-6 |
| Challenger Santa Fe | 2023/10/17 22:00 | Thiago Monteiro v Juan Manuel Cerundolo | 6-3,2-6,7-6 |