Stadium: Court 03 Round: 44 Ground: Clay
| ITF - M15 Telde | 2023/04/10 07:00 | Michael Zhu v Yannick Penkner | 6-1,6-2 |
| ITF - M15 Telde | 2023/04/09 09:00 | Yannick Penkner v Jack Karlsson Winstrand | 6-3,7-6 |
| ITF - M15 Porec | 2023/03/05 09:00 | Yannick Penkner v Fran Rakonic | 4-6,6-4,8-10 |
| ITF - M25 Antalya | 2023/02/05 07:00 | Alex Barrena v Yannick Penkner | 6-1,6-0 |
| ITF M25 Maribor Qual | 2022/09/04 15:30 | Heger, Tim v Yannick Penkner | 6-0,6-3 |
| ITF M15 Bad Waltersdorf | 2022/08/22 07:00 | Yannick Penkner v Yvo Panak | 3-6,1-6 |
| ITF M15 Bad Waltersdorf | 2022/08/21 09:00 | Yannick Penkner v Pietro Mugelli | 5-7,6-3,10-7 |
| ITF M15 Warmbad-Villach | 2022/05/15 10:00 | Martin Benes v Yannick Penkner | 6-3,6-1 |
| ITF M15 Krsko | 2023/05/15 08:00 | Dudun, Igor v Lun Obrul | 3-6,3-6 |
| ITF M25 Tbilisi | 2023/04/30 11:15 | Katz, Raz v Dudun, Igor | 2-6,6-0,10-4 |
| ITF M25 Tbilisi | 2023/04/24 08:00 | Eskander Guryev v Dudun, Igor | 3-6,6-3,16-14 |
| ITF - M25 Trente | 2023/03/28 07:00 | Biagio Gramaticopolo v Dudun, Igor | 6-3,6-3 |
| ITF - M25 Trente | 2023/03/27 11:15 | Erwin Troebinger v Dudun, Igor | 1-6,1-6 |
| ITF M25 Opatija | 2023/03/19 10:30 | Dudun, Igor v Federico Marchetti | 6-7,3-6 |
| ITF - M15 Rovinj | 2023/03/12 09:00 | Paul Woerner v Dudun, Igor | 6-3,6-3 |
| ITF - M15 Porec | 2023/03/05 09:00 | Martin Zeljenka v Dudun, Igor | 1-6,2-6 |