Stadium: Court 5 Round: 25 Ground: Hardcourt outdoor
| Challenger Salzburg | 2023/07/09 08:30 | Niklas Waldner v Mohamed Safwat | 3-6,5-7 |
| ITF M25 Klosters | 2023/07/06 08:40 | Niklas Waldner v Damien Wenger | 1-6,2-6 |
| ITF M25 Klosters | 2023/07/05 11:00 | Niklas Waldner v Jonas Trinker | 7-6,6-3 |
| ITF M25 Klosters | 2023/07/03 12:10 | Niklas Waldner v Laurin Aerne | 2-6,7-5,10-5 |
| ITF M15 Celje | 2023/06/26 10:55 | Maurus Malgiaritta v Niklas Waldner | 6-4,6-4 |
| ITF M15 Warmbad-Villach | 2023/05/21 10:00 | Aljaz Jeran v Niklas Waldner | 6-2,6-3 |
| ITF M15 Kursumlijska Banja | 2023/05/02 09:00 | Viktor Jovic v Niklas Waldner | 6-1,6-3 |
| ITF M15 Kursumlijska Banja | 2023/05/01 07:00 | Dmitrii Vasilev v Niklas Waldner | 6-3,1-6,7-10 |
| ITF M15 Monastir | 2023/07/03 15:30 | Aleksandr Lobanov v Gilbert S K Junior | 2-6,7-6,9-11 |
| ITF M15 Monastir | 2023/07/03 08:30 | Aleksandr Lobanov v Shu Matsuoka | 6-4,1-6,10-6 |
| ITF M15 Monastir | 2023/07/02 09:30 | Aleksandr Lobanov v Anthony Popyrin | 6-3,6-4 |
| ITF M15 Monastir | 2023/06/28 10:00 | Oliver Tarvet v Aleksandr Lobanov | 6-3,6-2 |
| ITF M15 Monastir | 2023/06/26 17:35 | Aleksandr Lobanov v Giulio Perego | 3-6,2-6 |
| ITF M15 Monastir | 2023/06/26 08:00 | Aleksandr Lobanov v Paul Ender | 6-1,6-3 |
| ITF M15 Monastir | 2023/06/11 08:30 | Aleksandr Lobanov v Thibault Baillargeat | 6-3,2-6,10-7 |
| ITF M15 Monastir | 2023/06/06 08:30 | Tiago Pereira v Aleksandr Lobanov | 7-5,6-3 |