Stadium: Court 8 Round: 26 Ground: Hardcourt indoor
| ITF M25 - Trento | 2019/02/27 11:00 | Yannick Mertens v Lorenzo Frigerio | 3-6,7-6,7-5 |
| ITF M25 - Glasgow | 2019/02/19 10:00 | Yannick Mertens v Tim Van Rijthoven | 3-6,2-6 |
| ITF M15 - Grenoble | 2019/02/10 14:30 | Leny Mitjana v Yannick Mertens | 6-3,7-5 |
| ITF M15 - Grenoble | 2019/02/09 14:30 | Matteo Martineau v Yannick Mertens | 3-6,4-6 |
| ITF M15 - Grenoble | 2019/02/08 10:00 | Yanais Laurent v Yannick Mertens | 3-6,3-6 |
| ITF M15 - Grenoble | 2019/02/07 11:40 | Ugo Blanchet v Yannick Mertens | 6-3,4-6,4-6 |
| ITF M15 - Grenoble | 2019/02/06 10:00 | Arthur Bernabe v Yannick Mertens | 1-6,0-6 |
| ITF M15 - Sharm El Sheikh | 2019/01/31 09:45 | Yannick Mertens v Pablo Vivero Gonzalez | 2-6,6-4,2-6 |
| ITF M25 - Trento | 2019/02/26 11:40 | Lorenzo Musetti v Julian Lenz | 3-6,7-6,3-6 |
| ITF M25 - Glasgow | 2019/02/19 10:00 | Julian Lenz v Gijs Brouwer | 2-6,2-6 |
| ITF M25 Oberentfelden | 2019/02/09 12:30 | Evan Furness v Julian Lenz | 6-2,6-3 |
| ITF M25 Oberentfelden | 2019/02/08 13:00 | Jerome Kym v Julian Lenz | 0-6,6-3,2-6 |
| ITF M25 Oberentfelden | 2019/02/07 12:00 | Antoine Bellier v Julian Lenz | 4-6,7-6,4-6 |
| ITF M25 Oberentfelden | 2019/02/05 12:00 | Dominic Stephan Stricker v Julian Lenz | 2-6,6-7 |
| Challenger - Koblenz | 2019/01/14 19:35 | Carlos Taberner v Julian Lenz | 6-4,5-7,6-2 |
| ITF M25 - HongKong | 2019/01/05 04:05 | Julian Lenz v Agustin Velotti | 5-7,6-2,6-2 |