Stadion: Idrottens Hus Round: 168
| Davis Cup | 2024/02/02 16:00 | Karl Friberg v Thiago Monteiro | 3-6,6-7 |
| ITF - M15 - Manacor | 2024/01/27 10:00 | Karl Friberg v Ryan Nijboer | 4-6,2-6 |
| ITF - M15 - Manacor | 2024/01/26 10:00 | Karl Friberg v Michiel de Krom | 7-6,6-3 |
| ITF - M15 - Manacor | 2024/01/25 14:30 | Karl Friberg v Kristjan Tamm | 6-1,1-6,6-3 |
| ITF - M15 - Manacor | 2024/01/24 09:30 | Karl Friberg v Hayato Matsuoka | 7-6,5-7,6-2 |
| Challenger - Oeiras - Qualifikation | 2024/01/07 17:15 | Karl Friberg v Samuel Vincent Ruggeri | 3-6,2-6 |
| 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 |
| Davis Cup | 2024/02/02 18:20 | Elias Ymer v Gustavo Heide | 4-6,6-1,6-3 |
| Challenger Punta del Este | 2024/01/24 17:00 | Thiago Agustin Tirante v Gustavo Heide | 4-6,6-3,6-2 |
| Challenger Punta del Este | 2024/01/22 20:10 | Gustavo Heide v Andrea Collarini | 6-3,6-3 |
| Challenger - Buenos Aires | 2024/01/17 15:30 | Santiago Rodriguez Taverna v Gustavo Heide | 6-7,6-4,6-4 |
| Challenger - Temuco | 2023/11/30 15:00 | Gustavo Heide v Valentin Vacherot | 6-1,4-6,2-6 |
| Challenger - Temuco | 2023/11/28 17:10 | Gustavo Heide v Juan Pablo Paz | 6-3,6-3 |
| Challenger - Brasilien | 2023/11/23 13:00 | Juan Pablo Ficovich v Gustavo Heide | 7-6,6-3 |
| Challenger - Brasilien | 2023/11/22 13:00 | Gustavo Heide v Tomas Barrios Vera | 7-6,6-4 |