Stadium: Center Round: 24 Ground: Hardcourt outdoor
| Challenger Canberra | 2019/01/08 01:15 | Sem Verbeek v Renzo Olivo | 6-4,4-6,6-7 |
| Challenger Canberra | 2019/01/07 06:50 | Sem Verbeek v Xin Gao | 1-6,7-6,6-3 |
| Challenger Noumea | 2019/01/02 08:25 | Federico Delbonis v Sem Verbeek | 6-3,7-5 |
| Challenger Noumea | 2018/12/31 23:00 | Tobias Simon v Sem Verbeek | 5-7,7-5,4-6 |
| Challenger Noumea | 2018/12/30 23:30 | John Paul Fruttero v Sem Verbeek | 4-6,1-6 |
| Lotto NK Tennis | 2018/12/13 14:00 | Jesse Timmermans v Sem Verbeek | 3-6,6-4,6-1 |
| Challenger Champaign | 2018/11/11 18:45 | Sem Verbeek v Keenan Mayo | 6-7,6-7 |
| Challenger Champaign | 2018/11/10 18:55 | Pavel Krainik v Sem Verbeek | 2-6,6-3,3-6 |
| ITF M25 Trento | 2019/03/03 09:30 | Jeremy Jahn v Jannik Sinner | 3-6,4-6 |
| ITF M25 Trento | 2019/03/02 15:00 | Jannik Sinner v Elmar Ejupovic | 7-5,6-3 |
| ITF M25 Trento | 2019/03/01 16:00 | Jannik Sinner v Antoine Cornut-Chauvinc | 6-0,7-6 |
| ITF M25 Trento | 2019/02/28 15:40 | Jannik Sinner v Jules Okala | 6-4,6-4 |
| ITF M25 Trento | 2019/02/27 16:00 | Albano Olivetti v Jannik Sinner | 6-7,6-3,6-7 |
| Challenger Bergamo | 2019/02/24 15:30 | Jannik Sinner v Roberto Marcora | 6-3,6-1 |
| Challenger Bergamo | 2019/02/23 20:10 | Tristan Lamasine v Jannik Sinner | 2-6,3-6 |
| Challenger Bergamo | 2019/02/22 19:00 | Gianluigi Quinzi v Jannik Sinner | 2-6,3-6 |