Stadium: Center Round: 24 Ground: Hardcourt outdoor
| Jinan, China | 2019/09/05 03:00 | Wu, Di v Soeda, Go | 2-6,1-6 |
| Jinan, China | 2019/09/03 06:30 | Hiroki Moriya v Wu, Di | 3-6,5-7 |
| Jinan, China | 2019/09/02 04:30 | Wu, Di v Collin Altamirano | 6-4,6-4 |
| Baotou, Chine | 2019/08/27 07:05 | Tung-Lin Wu v Wu, Di | 3-6,6-1,7-5 |
| Baotou, Chine | 2019/08/26 02:00 | Grills, Jacob v Wu, Di | 6-7,4-6 |
| Chengdu, China | 2019/08/01 03:00 | Wu, Di v Chung, Hyeon | 6-7,7-6,3-6 |
| Chengdu, China | 2019/07/30 06:55 | Wu, Di v Wang, Chuhan | 6-3,6-3 |
| Fergana, Uzbekistan | 2019/06/20 08:35 | Wu, Di v Gleb Sakharov | 3-6,6-7 |
| Jinan, China | 2019/09/02 07:40 | Igor Sijsling v Goncalo Oliveira | 3-6,2-6 |
| Portoroz, Slovénie | 2019/08/13 08:00 | Igor Sijsling v Gomez-Herrera, Carlos | 2-6,3-6 |
| Chiswick, Singles W-ITF-GBR-09A | 2019/08/11 10:00 | Jack Draper v Igor Sijsling | 6-4,2-6,6-3 |
| Chiswick, Singles W-ITF-GBR-09A | 2019/08/10 12:30 | Anton Matusevich v Igor Sijsling | 6-4,1-6,4-6 |
| Chiswick, Singles W-ITF-GBR-09A | 2019/08/09 10:30 | Robert, Quentin v Igor Sijsling | 6-2,3-6,1-6 |
| Chiswick, Singles W-ITF-GBR-09A | 2019/08/08 13:25 | Charles Broom v Igor Sijsling | 7-6,3-6,6-7 |
| Chiswick, Singles W-ITF-GBR-09A | 2019/08/07 10:30 | Emile Hudd v Igor Sijsling | 7-6,3-6,1-6 |
| Dublin, Singles Qualifying M-ITF-IRL-01A | 2019/08/04 14:30 | Igor Sijsling v Ryan Peniston | 6-4,7-6 |