Stadium: Altb.2 Round: 25 Ground: Clay
| ITF M25 Oberentfelden | 2019/02/06 18:10 | Jerome Kym v Lukas Ollert | 6-2,7-6 |
| ITF M25 Oberentfelden | 2019/02/04 14:10 | Lukas Ollert v Adrien Burdet | 6-3,6-3 |
| ITF M25 Oberentfelden | 2019/02/04 08:30 | Lukas Ollert v Mischa Lanz | 6-3,6-2 |
| ITF Thailand F8 | 2018/11/06 06:40 | Ray Ho v Lukas Ollert | 6-1,3-6,6-3 |
| ITF Vietnam F5 | 2018/10/30 03:00 | Lukas Ollert v Nam Hoang Ly | 6-7,1-6 |
| Challenger Ismaning | 2018/10/13 13:10 | Lukas Ollert v Marek Gengel | 3-6,3-6 |
| ITF Sweden F5 | 2018/10/01 12:00 | Lukas Ollert v David Poljak | 6-4,3-6,2-6 |
| ITF Sweden F4 | 2018/09/25 11:00 | George Loffhagen v Lukas Ollert | 6-1,6-3 |
| ITF M15 Trier | 2019/08/16 14:20 | Adrian Obert v Milan Welte | 6-3,3-6,6-0 |
| ITF M15 Trier | 2019/08/15 13:50 | Milan Welte v Maik Steiner | 5-7,7-6,6-1 |
| ITF M15 Trier | 2019/08/14 16:00 | Bruno Santanna v Milan Welte | 6-7,0-6 |
| ITF M15 Trier | 2019/08/13 11:10 | Milan Welte v Alessandro Dragoni | 6-2,6-0 |
| ITF M15 Saarlouis | 2019/07/01 08:00 | Alexis Gautier v Milan Welte | 6-4,6-3 |
| ITF Germany F11 | 2018/08/06 11:00 | Milan Welte v Tejas Chaukulkar | 2-6,3-6 |
| ITF Germany F11 | 2018/08/05 12:00 | Milan Welte v Tim Zeitvogel | 7-5,3-6,6-4 |
| ITF Germany F11 | 2018/08/05 08:00 | Milan Welte v Sizya Ernest Kivanda | 6-0,6-2 |