Stadium: Center Round: 24 Ground: Grass
| Open de France | 2019/05/23 14:15 | Brown, Dustin v Salvatore Caruso | 6-4,4-6,3-6 |
| Open de France | 2019/05/22 13:10 | Brown, Dustin v Emilio Gomez | 6-2,7-5 |
| Open de France | 2019/05/20 09:15 | Istomin, Denis v Brown, Dustin | 6-7,1-6 |
| Challenger - Heilbronn | 2019/05/15 16:15 | Brown, Dustin v Stefano Travaglia | 1-6,4-6 |
| Challenger - Heilbronn | 2019/05/13 15:55 | Stebe, Cedrik-Marcel v Brown, Dustin | 4-6,3-6 |
| Puerto Vallarta, Mexico | 2019/05/03 01:00 | Brown, Dustin v Smith, John-Patrick | 3-6,6-3,2-6 |
| Puerto Vallarta, Mexico | 2019/05/02 00:00 | Brown, Dustin v King, Kevin | 6-3,3-6,6-4 |
| Challenger Leon | 2019/04/24 23:30 | Manuel Guinard v Brown, Dustin | 6-4,6-2 |
| Open de France | 2019/05/20 09:50 | Manuel Guinard v Lacko, Lukas | 7-6,4-6,6-1 |
| Challenger - Gwangju | 2019/05/17 04:00 | Akira Santillan v Lacko, Lukas | 6-4,6-3 |
| Challenger - Gwangju | 2019/05/15 02:00 | Yan Bai v Lacko, Lukas | 6-7,4-6 |
| Challenger - Busan | 2019/05/09 07:05 | Lacko, Lukas v Yasutaka Uchiyama | 6-3,4-6,0-6 |
| Challenger - Busan | 2019/05/08 03:00 | Lacko, Lukas v Luke Saville | 3-6,6-3,6-4 |
| Challenger Seoul | 2019/05/02 02:00 | Lacko, Lukas v Tatsuma Ito | 4-6,1-6 |
| Challenger Seoul | 2019/05/01 02:00 | Lacko, Lukas v Luke Saville | 6-3,6-4 |
| Challenger - Taipei | 2019/04/11 03:00 | Lacko, Lukas v Sugita, Yuichi | 6-3,3-6,4-6 |