Stadium: Court 1 Round: 25 Ground: Hardcourt outdoor
| ITF - M15 Hua Hin | 2019/09/04 05:00 | Cheng-Yu Yu v Yu Hsiou Hsu | 7-6,6-3 |
| ITF - M15 Hua Hin | 2019/08/28 03:00 | Kuan-Yi Lee v Cheng-Yu Yu | 2-6,6-2,7-6 |
| ITF - M15 Jakarta | 2019/08/20 05:20 | Renta Tokuda v Cheng-Yu Yu | 4-6,6-3,6-4 |
| ITF - M15 Jakarta | 2019/08/12 02:30 | Cheng-Yu Yu v Kunal Anand | 6-4,4-6,6-10 |
| ITF M25 Taipei | 2019/07/23 06:10 | Cheng-Yu Yu v Sora Fukuda | 6-3,5-7,6-4 |
| ITF M25 Taipei | 2019/07/20 02:00 | Cheng-Yu Yu v Yu Hsiou Hsu | 5-7,2-6 |
| ITF M25 Taipei | 2019/07/19 02:00 | Jesse Delaney v Cheng-Yu Yu | 0-6,3-6 |
| ITF M25 Taipei | 2019/07/18 10:10 | Cheng-Yu Yu v Yusuke Takahashi | 7-5,6-2 |
| ITF - M15 Sharm El Sheikh | 2019/10/20 08:00 | Piotr Galus v Billy Harris | 5-7,4-6 |
| ITF M15 Bad Salzdetfurth | 2019/10/07 13:45 | Piotr Galus v Jim Walder | 2-6,6-7 |
| ITF - M25 Falun | 2019/09/29 11:00 | Piotr Matuszewski v Piotr Galus | 3-6,6-2,10-7 |
| Challenger - Szczecin | 2019/09/10 13:45 | Daniel Masur v Piotr Galus | 6-3,7-6 |
| Challenger - Szczecin | 2019/09/09 12:00 | Maciej Smola v Piotr Galus | 6-4,3-6,3-6 |
| ITF - M15 Haren | 2019/08/26 09:00 | Aloys J W Van Baal v Piotr Galus | 6-3,6-4 |
| ITF - M15 Haren | 2019/08/25 08:00 | Piotr Galus v Jing L Weng | 1-6,6-2,10-4 |
| ITF - M25 Poznan | 2019/08/21 13:40 | Piotr Galus v Nicolas Alvarez | 6-7,1-6 |