Stadium: Court 4 Round: 25 Ground: Hardcourt indoor
| ITF M15 - Pärnu | 2020/11/02 09:30 | Karl Kiur Saar v Stefan Loncar | 4-6,6-7 |
| ITF M15 - Alkmaar | 2020/08/23 08:00 | Robert Strombachs v Stefan Loncar | 6-4,6-0 |
| ITF - M15 Poreč | 2020/03/10 11:10 | Tomislav Jotovski v Stefan Loncar | 6-1,6-2 |
| ITF - M15 Poreč | 2020/03/09 10:30 | Stefan Loncar v Colin Van Beem | 6-2,3-6,10-6 |
| ITF - M15 Poreč | 2020/03/08 13:35 | Stefan Loncar v Ivan Sodan | 6-3,6-1 |
| ITF - M15 Antalya | 2020/02/16 09:30 | Stefan Loncar v Andrea Fiorentini | 4-6,2-6 |
| ITF - M15 Antalya | 2020/02/11 08:30 | Luciano Tacchi v Stefan Loncar | 6-1,6-0 |
| ITF - M15 Monastir | 2019/12/16 08:00 | Loic Ratsaratany v Stefan Loncar | 6-4,6-2 |
| ITF M15 - Sarreguemines | 2020/10/28 09:25 | Baptiste Crepatte v Mick Veldheer | 6-3,6-4 |
| ITF - M25 Pardubice | 2020/09/30 12:45 | Jelle Sels v Mick Veldheer | 7-6,6-1 |
| ITF - M25 Pardubice | 2020/09/30 08:00 | Dominik Recek v Mick Veldheer | 6-4,3-6,12-14 |
| ITF - M25 Pardubice | 2020/09/27 09:00 | Victor Sklenka v Mick Veldheer | 1-6,2-6 |
| ITF - M25 Jablonec nad Nisou | 2020/09/21 10:30 | Mick Veldheer v Tomas Papik | 6-3,5-7,8-10 |
| ITF - M25 Praag | 2020/09/13 14:15 | Robin Stanek v Mick Veldheer | 6-4,6-2 |
| ITF M15 - Anif | 2020/08/26 08:00 | Mick Veldheer v Thiago Agustin Tirante | 4-6,4-6 |
| Challenger Potchefstroom | 2020/03/11 09:25 | Mick Veldheer v Hugo Grenier | 6-2,4-6,2-6 |