Stadium: Court 2 Round: 25 Ground: Clay
| ITF Belgium F1 | 2018/06/21 11:05 | Ryan Nijboer v Geens, Clement | 2-6,1-6 |
| ITF - M15 Doha | 2020/03/11 16:20 | Kai Wehnelt v Ryan Nijboer | 2-6,6-4,6-4 |
| ITF - M15 Sharm El Sheikh | 2020/02/27 09:00 | Ryan Nijboer v David Poljak | 2-6,4-6 |
| ITF - M15 Sharm El Sheikh | 2020/02/26 10:30 | Ryan Nijboer v Lorenzo Rottoli | 6-3,6-1 |
| ITF - M15 Sharm El Sheikh | 2020/02/21 07:55 | Vivero Gonzalez, Pablo v Ryan Nijboer | 6-3,7-5 |
| ITF - M15 Sharm El Sheikh | 2020/02/20 09:50 | Kelsey Stevenson v Ryan Nijboer | 3-6,7-6,3-6 |
| ITF - M15 Sharm El Sheikh | 2020/02/19 08:00 | Yitbarek, Simon v Ryan Nijboer | 6-3,6-7,2-6 |
| ATP - Rotterdam | 2020/02/08 10:00 | Ryan Nijboer v Alexei Popyrin | 2-6,4-6 |
| ITF - M15 Veigy-Foncenex | 2020/01/28 12:30 | Ryan Nijboer v Cornut-Chauvinc, Antoine | 2-6,5-7 |
| ITF - M15 Héraklion | 2020/03/12 10:20 | Hampel, Lenny v Geens, Clement | 2-6,6-0,4-6 |
| ITF - M15 Héraklion | 2020/03/11 12:50 | Geens, Clement v Rodriguez-Pace, Ricardo | 6-2,7-5 |
| ITF - M15 Héraklion | 2020/02/21 11:05 | Geens, Clement v Nicholas David Ionel | 6-3,6-2 |
| ITF - M15 Héraklion | 2020/02/20 12:00 | Zizou Bergs v Geens, Clement | 5-7,4-6 |
| ITF - M15 Héraklion | 2020/02/19 08:25 | Geens, Clement v Theodorou, Eleftherios | 6-4,6-2 |
| ITF - M15 Héraklion | 2020/02/16 11:00 | Geens, Clement v Zizou Bergs | 3-6,6-4,6-1 |
| ITF - M15 Héraklion | 2020/02/16 09:00 | Musialek, Alexis v Geens, Clement | 6-4,3-6,4-6 |
| ITF - M15 Héraklion | 2020/02/14 09:00 | Geens, Clement v Antonio Massara | 3-6,6-2,6-3 |