Stadium: Hard Court 13 Round: 25 Ground: Hardcourt outdoor
| ITF M15 Heraklion | 2019/05/25 07:00 | Markos Kalovelonis v Evan Hoyt | 5-7,7-6,4-6 |
| ITF M15 Heraklion | 2019/05/24 07:00 | Andres Artunedo Martinavarr v Markos Kalovelonis | 6-7,4-6 |
| ITF M15 Heraklion | 2019/05/23 07:00 | Markos Kalovelonis v Aidan Mchugh | 6-3,6-4 |
| ITF M15 Heraklion | 2019/05/22 10:00 | Ioannis Stergiou v Markos Kalovelonis | 4-6,2-6 |
| ITF M15 Tbilisi | 2019/05/03 06:00 | Markos Kalovelonis v Mark Whitehouse | 6-3,4-6,3-6 |
| ITF M15 Tbilisi | 2019/05/02 06:00 | Markos Kalovelonis v Viacheslav Yulik | 3-6,7-6,6-2 |
| ITF M15 Tbilisi | 2019/05/01 06:00 | Markos Kalovelonis v Ben Jones | 3-6,7-6,6-3 |
| ITF M25 Andijan | 2019/04/26 07:00 | Markos Kalovelonis v Khumoyun Sultanov | 1-6,4-6 |
| ITF M15 Heraklion | 2019/05/21 08:35 | Patrik Nema v Chien Hsun Lo | 6-4,6-3 |
| Challenger Nanchang | 2019/04/22 04:00 | Akira Santillan v Chien Hsun Lo | 6-1,6-2 |
| Challenger Taipei | 2019/04/11 06:30 | Ramkumar Ramanathan v Chien Hsun Lo | 4-6,6-3,6-2 |
| Challenger Taipei | 2019/04/08 09:40 | Collin Altamirano v Chien Hsun Lo | 5-7,7-5,3-6 |
| ITF M15 Sharm El Sheikh | 2019/03/19 08:00 | Chien Hsun Lo v Riccardo Maiga | 6-7,6-3,6-7 |
| ITF M15 Sharm El Sheikh | 2019/03/13 13:05 | Adrian Bodmer v Chien Hsun Lo | 6-7,7-5,7-5 |
| ITF M15 Sharm El Sheikh | 2019/03/07 10:20 | Adam Moundir v Chien Hsun Lo | 6-4,6-2 |
| ITF M25 Aktobe | 2019/02/19 11:05 | Chien Hsun Lo v Sagadat Ayap | 6-1,3-6,4-6 |