Stadium: Court 3 Round: 54 Ground: Clay
| ITF M25 Jablonec Nad Nisou | 2023/05/30 09:30 | Matthew William Donald v Lukas Janousek | 6-0,6-2 |
| ITF M25 Jablonec Nad Nisou | 2023/05/29 10:30 | Lukas Janousek v Filip Apltauer | 7-5,2-6,12-10 |
| ITF M25 Most | 2023/05/23 09:50 | Michael Agwi v Lukas Janousek | 6-1,6-3 |
| ITF M25 Most | 2023/05/21 08:00 | Sergo Sikharulidze v Lukas Janousek | 3-6,4-6 |
| ITF M15 Meerbusch | 2023/04/23 10:30 | Quin Verstegen v Lukas Janousek | 4-6,6-4,10-8 |
| ITF M25 Trnava | 2023/03/27 13:00 | Lukas Janousek v Piotr Kusiewicz | 4-6,1-6 |
| ITF M25 Nussloch | 2023/01/22 08:30 | Noah Thurner v Lukas Janousek | 7-5,6-2 |
| ITF M15 Antalya | 2022/10/16 07:00 | Lukas Janousek v Benedikt Henning | 0-6,1-6 |
| ITF M15 Karuizawa | 2023/05/30 03:00 | Kenta Miyoshi v Luca Hesselmann | 6-1,6-2 |
| ITF M15 Karuizawa | 2023/05/28 01:15 | Maximus Kawabata v Luca Hesselmann | 1-6,1-6 |
| ITF M15 Antalya | 2023/04/23 07:00 | Lawrence Bataljin v Luca Hesselmann | 4-6,6-1,15-13 |
| ITF M15 Antalya | 2023/04/02 07:00 | Luca Hesselmann v John Sperle | 0-6,2-6 |
| ITF M15 Antalya | 2023/03/26 08:00 | Artem Cherepin v Luca Hesselmann | 6-2,4-6,10-6 |
| ITF M25 Antalya | 2023/01/30 11:25 | Stephanos Schinas v Luca Hesselmann | 5-7,6-4,10-2 |
| ITF M25 Nussloch | 2023/01/22 08:30 | Batiste Guerra v Luca Hesselmann | 6-3,6-2 |
| ITF M15 Maputo | 2022/10/13 07:30 | Tibo Colson v Luca Hesselmann | 6-1,6-2 |