Stadium: Court 4 Round: 25 Ground: Hardcourt outdoor
| ITF M25 Roehampton | 2023/07/31 11:45 | Billy Blaydes v Koenig, Luc | 4-6,6-4,8-10 |
| ITF M25 Roehampton | 2023/07/30 12:00 | Ying Hou v Koenig, Luc | 4-6,1-6 |
| ITF M25 Roehampton | 2023/07/16 10:00 | Freddy Blaydes v Koenig, Luc | 6-7,6-2,13-11 |
| ITF - M15 Monastir | 2023/07/05 08:30 | Samir Hamza Reguig v Koenig, Luc | 6-0,3-6,6-3 |
| ITF - M15 Monastir | 2023/07/03 14:50 | Scott, Andreas v Koenig, Luc | 1-6,4-6 |
| ITF - M15 Monastir | 2023/07/03 08:30 | Halmenschlager Reis, Ighor v Koenig, Luc | 1-6,1-6 |
| ITF - M15 Monastir | 2023/06/26 13:30 | Koenig, Luc v James Connel | 4-6,1-6 |
| ITF - M15 Monastir | 2023/06/26 08:00 | Koenig, Luc v Martinez Arjona, Samuel | 6-0,6-2 |
| ITF M25 Roehampton | 2023/07/31 11:10 | Kalman Boyd v Ross, Matthis | 7-5,6-0 |
| ITF M25 Roehampton | 2023/07/30 09:00 | Kalman Boyd v Max Cunat | 6-3,7-6 |
| ITF - M15 Monastir | 2023/07/20 11:20 | Kalman Boyd v Boris Butulija | 2-6,3-6 |
| ITF - M15 Monastir | 2023/07/19 09:45 | Nicolas Rafael Goldberg Alviani v Kalman Boyd | 1-6,1-6 |
| ITF - M15 Monastir | 2023/07/17 16:30 | Kalman Boyd v Romain Faucon | 7-5,3-6,10-8 |
| ITF - M15 Monastir | 2023/07/17 07:30 | Kalman Boyd v Phillip Jordan | 6-2,6-3 |
| ITF - M15 Monastir | 2023/07/16 08:00 | Kalman Boyd v Benjamin Kreynes | 6-1,6-1 |
| ITF - M15 Monastir | 2023/07/12 11:40 | Egor Agafonov v Kalman Boyd | 2-6,7-6,6-4 |