Stadium: Court 2 Round: 25 Ground: Clay
| ITF M15 Bad Waltersdorf | 2021/08/31 08:20 | Alen Rogic-Hadzalic v Niklas Waldner | 1-6,6-1,10-3 |
| ITF M15 Bad Waltersdorf | 2021/08/27 08:00 | Alen Rogic-Hadzalic v Gabriel Decamps | 2-6,6-7 |
| ITF M15 Bad Waltersdorf | 2021/08/26 11:45 | Matic Spec v Alen Rogic-Hadzalic | 2-6,4-6 |
| ITF M15 Bad Waltersdorf | 2021/08/25 11:45 | Gergely Madarasz v Alen Rogic-Hadzalic | 2-6,3-6 |
| ITF M15 Bad Waltersdorf | 2021/08/23 15:50 | Alen Rogic-Hadzalic v Philip Bachmaier | 6-3,7-5 |
| ITF M15 Bad Waltersdorf | 2021/08/22 07:00 | Alen Rogic-Hadzalic v Tino Kovacic | 6-2,6-3 |
| ITF M15 Novi Sad | 2021/08/02 12:30 | Alen Rogic-Hadzalic v Alex Knaff | 2-6,1-6 |
| ITF M15 Novi Sad | 2021/07/27 07:30 | Roman Andres Burruchaga v Alen Rogic-Hadzalic | 7-6,6-2 |
| ITF M15 Bad Waltersdorf | 2021/08/25 07:00 | Lukas Neumayer v Timo Stodder | 4-6,3-6 |
| ITF M15 Warmbad-Villach | 2021/08/20 12:15 | Peter Heller v Lukas Neumayer | 6-2,3-6,6-3 |
| ITF M15 Warmbad-Villach | 2021/08/19 14:35 | Matic Spec v Lukas Neumayer | 2-6,3-6 |
| ITF M15 Warmbad-Villach | 2021/08/17 14:50 | Lukas Neumayer v Quentin Folliot | 7-5,6-1 |
| ATP Kitzbuhel | 2021/07/27 10:35 | Mario Vilella Martinez v Lukas Neumayer | 6-7,7-5,6-4 |
| ATP Kitzbuhel | 2021/07/25 11:20 | Lukas Neumayer v Lukas Rosol | 6-4,7-6 |
| ITF M25 Kottingbrunn | 2021/07/21 09:30 | Martin Krumich v Lukas Neumayer | 7-5,6-2 |
| ITF M25 Telfs | 2021/07/18 14:30 | Bogdan Ionut Apostol v Lukas Neumayer | 6-7,6-2,6-4 |