Stadium: Court 4 Round: 25 Ground: Hardcourt outdoor
| ITF M15 Forbach | 2019/09/23 09:55 | Lenaerts, Yannick v Guenther, Paul-Georg | 3-6,6-7 |
| ITF M25 Plaisir | 2019/09/15 15:25 | Lenaerts, Yannick v Sinius, Warren | 5-7,3-6 |
| Varna, Singles M-ITF-BUL-04A | 2019/09/11 10:00 | Niv, Benjamin v Lenaerts, Yannick | 6-2,6-3 |
| Koksijde, Singles M-ITF-BEL-04A | 2019/08/12 12:45 | Lenaerts, Yannick v Nicolas Bruna | 2-6,0-6 |
| Brussels, Singles M-ITF-BEL-03A | 2019/07/29 11:05 | Lenaerts, Yannick v Cloes, Loic | 2-6,2-6 |
| ITF M25 Kassel | 2019/07/15 11:00 | Lenaerts, Yannick v Moreno, Federico | 2-6,2-6 |
| ITF - M15 Sharm El Sheikh | 2019/02/20 12:55 | Lenaerts, Yannick v Khotkov, Oleg | 4-6,1-6 |
| Egypt F27, Singles Qualifying | 2018/11/10 10:00 | Lenaerts, Yannick v Gaber, Adham | 4-6,2-6 |