Stadium: Sparkassen Court Round: 25 Ground: Clay
| ITF M15 Marburg | 2019/07/11 15:00 | Louis Wessels v Karlo Cubelic | 0-6,6-3,6-2 |
| ITF M25 Marburg | 2023/07/04 07:55 | Tomas Lanik v Karlo Cubelic | 3-6,6-1,7-10 |
| ITF M25 Marburg | 2023/07/03 08:00 | Noah Thurner v Karlo Cubelic | 7-6,3-6,8-10 |
| ITF M15 Kamen | 2023/06/29 09:00 | Karlo Cubelic v Francois Musitelli | 3-6,4-6 |
| ITF M15 Kamen | 2023/06/28 09:00 | Quentin Folliot v Karlo Cubelic | 2-6,2-6 |
| ITF M15 Kamen | 2023/06/26 10:00 | Karlo Cubelic v Nino Toto | 6-2,6-2 |
| ITF M15 Duffel | 2023/06/12 08:00 | Marlon Vankan v Karlo Cubelic | 3-6,7-5,10-6 |
| ITF M15 Duffel | 2023/06/11 14:00 | Andre Megrabian v Karlo Cubelic | 3-6,1-6 |
| ITF M25 Sharm El Sheikh | 2023/04/19 11:20 | Karlo Cubelic v Robin Bertrand | 2-6,2-6 |
| ITF M25 Arlon | 2023/06/30 10:55 | Louis Wessels v Sandro Kopp | 6-7,3-6 |
| ITF M25 Arlon | 2023/06/29 08:00 | Louis Wessels v Wilson Leite | 4-6,7-5,6-0 |
| ITF M25 Arlon | 2023/06/28 08:00 | Louis Wessels v John Sperle | 6-1,5-7,6-3 |
| ATP Halle | 2023/06/20 11:35 | Louis Wessels v Yannick Hanfmann | 4-6,6-3,3-6 |
| ATP Halle | 2023/06/18 10:35 | Louis Wessels v Henri Squire | 6-3,3-6,6-3 |
| ATP Halle | 2023/06/17 09:00 | Zhizhen Zhang v Louis Wessels | 4-6,2-6 |
| ATP Stuttgart | 2023/06/10 11:00 | Marton Fucsovics v Louis Wessels | 6-3,6-1 |
| Challenger Heilbronn | 2023/06/04 12:20 | Louis Wessels v Andrea Arnaboldi | 3-6,6-4,6-7 |