Stadium: Court 15 Round: 25 Ground: Hardcourt indoor
| ITF M15 Alkmaar | 2020/08/30 13:00 | Igor Sijsling v Jacopo Berrettini | 6-2,6-1 |
| ITF M15 Alkmaar | 2020/08/29 13:30 | Igor Sijsling v Jesper De Jong | 6-3,6-2 |
| ITF M15 Alkmaar | 2020/08/28 15:45 | Igor Sijsling v Shintaro Mochizuki | 6-1,6-1 |
| ITF M15 Alkmaar | 2020/08/27 15:50 | Igor Sijsling v Pol Martin Tiffon | 6-4,6-4 |
| ITF M15 Alkmaar | 2020/08/26 11:00 | Igor Sijsling v Sidane Pontjodikromo | 6-1,6-0 |
| ITF M25 Vogau | 2020/08/21 11:15 | Igor Sijsling v Manuel Guinard | 1-6,3-6 |
| ITF M25 Vogau | 2020/08/20 12:55 | Tobias Simon v Igor Sijsling | 5-7,4-6 |
| ITF M25 Vogau | 2020/08/19 13:15 | Artem Dubrivnyy v Igor Sijsling | 7-6,3-6,4-6 |
| ITF M25 Plaisir | 2020/09/14 15:45 | Samuel Brosset v Boris Fassbender | 6-7,4-6 |
| ITF M25 Plaisir | 2020/09/14 11:10 | Boris Fassbender v Alexis Canter | 6-3,6-1 |
| ITF M25 Plaisir | 2020/09/13 16:20 | Boris Fassbender v Charles Bertimon | 6-4,6-4 |
| ITF M15 Sarreguemines | 2019/11/21 12:30 | Jan Choinski v Boris Fassbender | 6-3,6-2 |
| ITF M15 Sarreguemines | 2019/11/20 15:00 | Adan Freire Da Silva v Boris Fassbender | 3-6,2-6 |
| ITF M15 Sarreguemines | 2019/11/18 12:55 | Boris Fassbender v Tom Paris | 6-3,6-2 |
| ITF M15 Sarreguemines | 2019/11/17 13:20 | Boris Fassbender v Tobias Brutscher | 6-4,6-2 |
| ITF M15 Villers Les Nancy | 2019/11/12 11:30 | Mats Rosenkranz v Boris Fassbender | 7-6,5-7,6-2 |