Stadium: Store 1 Round: 25 Ground: Clay
| ITF M15 Opatija | 2019/03/26 14:45 | Admir Kalender v Jonas Trinker | 6-3,6-4 |
| ITF M15 Warmbad-Villach | 2023/05/22 11:25 | Jonas Trinker v Liam Gavrielides | 1-6,2-6 |
| ITF M15 Warmbad-Villach | 2023/05/21 12:00 | Jonas Trinker v Daniele Valentino | 6-3,4-6,10-5 |
| ITF M15 Kalmar | 2023/05/17 12:45 | Olle Noltorp v Jonas Trinker | 2-6,5-7 |
| ITF M25 Varnamo | 2023/05/10 13:05 | Jonas Trinker v Jonathan Mridha | 6-3,4-6,3-6 |
| ITF M15 Alaminos-Larnaca | 2023/05/02 06:00 | Jonas Trinker v Edoardo Cherie Ligniere | 4-6,6-7 |
| ITF M15 Alaminos-Larnaca | 2023/05/01 06:00 | Jonas Trinker v Tim Ruehl | 7-6,3-6,10-8 |
| ITF M15 Alaminos-Larnaca | 2023/04/28 07:00 | Guy Den Ouden v Jonas Trinker | 7-5,6-4 |
| ITF M15 Alaminos-Larnaca | 2023/04/27 10:25 | Shunsuke Wakita v Jonas Trinker | 4-6,4-6 |
| ITF M15 Krsko | 2023/05/19 11:40 | Admir Kalender v Lucas Poullain | 2-6,4-6 |
| ITF M15 Krsko | 2023/05/18 14:55 | Lukas Palovic v Admir Kalender | 2-6,6-4,2-6 |
| ITF M15 Doboj | 2023/05/08 08:00 | Admir Kalender v Daniele Minighini | 4-6,6-3,2-10 |
| ITF M15 Kursumlijska Banja | 2023/04/26 07:00 | Admir Kalender v Petr Nesterov | 2-6,6-7 |
| ITF M15 Vilnius | 2023/01/16 09:20 | Admir Kalender v Jesse De Jager | 3-6,4-6 |
| ITF M15 Vilnius | 2023/01/15 08:00 | Admir Kalender v Daniil Piatrouski | 6-2,4-6,10-7 |
| ITF M15 Sozopol | 2022/10/20 09:40 | Admir Kalender v Simeon Terziev | 4-6,4-6 |
| ITF M15 Sozopol | 2022/10/18 06:55 | Calin Manda v Admir Kalender | 4-6,1-6 |