Stadium: Center Court Round: 26 Ground: Hardcourt outdoor
| Challenger Taipei | 2017/04/20 06:00 | Tatsuma Ito v Lukas Lacko | 6-4,6-4 |
| Challenger Seoul | 2019/05/01 02:00 | Lukas Lacko v Luke Saville | 6-3,6-4 |
| Challenger Taipei | 2019/04/11 03:00 | Lukas Lacko v Yuichi Sugita | 6-3,3-6,4-6 |
| Challenger Taipei | 2019/04/09 08:40 | Lukas Lacko v Marc-Andrea Huesler | 4-6,7-6,6-2 |
| ATP Miami | 2019/03/21 15:00 | Robin Haase v Lukas Lacko | 6-2,6-4 |
| ATP Miami | 2019/03/18 14:00 | Juan Ignacio Londero v Lukas Lacko | 4-6,1-6 |
| Challenger Phoenix | 2019/03/13 18:55 | Lukas Lacko v John Millman | 7-6,4-6,6-7 |
| Challenger Phoenix | 2019/03/12 21:45 | Yasutaka Uchiyama v Lukas Lacko | 7-5,4-6,2-6 |
| ATP Indian Wells | 2019/03/06 22:15 | Radu Albot v Lukas Lacko | 7-6,7-6 |
| Challenger Seoul | 2019/04/30 07:20 | Filip Peliwo v Tatsuma Ito | 5-7,2-6 |
| Challenger Taipei | 2019/04/12 07:20 | Tatsuma Ito v Sergiy Stakhovsky | 6-7,7-6,4-6 |
| Challenger Taipei | 2019/04/11 07:40 | Kamil Majchrzak v Tatsuma Ito | 7-6,6-7,6-7 |
| Challenger Taipei | 2019/04/10 05:10 | Kuan-Yi Lee v Tatsuma Ito | 3-6,3-6 |
| ATP Miami | 2019/03/18 20:45 | Tatsuma Ito v Daniel Evans | 5-7,1-6 |
| Challenger Phoenix | 2019/03/14 18:30 | Tatsuma Ito v Guido Andreozzi | 2-6,6-3,4-6 |
| Challenger Phoenix | 2019/03/13 22:05 | Matthew Ebden v Tatsuma Ito | 6-3,4-6,6-7 |
| Challenger Phoenix | 2019/03/12 21:10 | Nathan Ponwith v Tatsuma Ito | 4-6,4-6 |