| Akita Masters 2019, MD | 08/14 01:00 | 5 | Mitsuhashi K / Ogura Y v Lee Y D / Yoo Y S | - | Walkover | |
| Russia Open 2019, MD | 07/20 03:00 | 2 | Boe M / Conrad-Petersen M v Lee Y D / Yoo Y S | L | 2-1 | |
| Russia Open 2019, MD | 07/19 03:40 | 3 | Lee Y D / Yoo Y S v Oshima K / Tsukamoto Y | W | 2-0 | |
| Russia Open 2019, MD | 07/18 06:00 | 4 | Lee Y D / Yoo Y S v Garaga K P / Kapila D | W | 2-0 | |
| US Open 2019, MD | 07/13 22:00 | 2 | Lee Y D / Yoo Y S v Lee / Wang | L | 1-2 | |
| US Open 2019, MD | 07/13 05:00 | 3 | Lee/Yang v Lee Y D / Yoo Y S | W | 1-2 | |
| US Open 2019, MD | 07/12 01:45 | 4 | Boe M / Conrad-Petersen M v Lee Y D / Yoo Y S | W | 0-2 | |
| US Open 2019, MD | 07/10 16:00 | 5 | Lee Y D / Yoo Y S v Attri / Reddy | W | Cancelled | |
| Canada Open MD | 07/04 21:45 | 4 | Lee/Yang v Lee Y D / Yoo Y S | L | 2-0 | |
| Canada Open MD | 07/03 19:00 | 5 | Hoshino S / Nishikawa Y v Lee Y D / Yoo Y S | W | 1-2 | |
| Australian Open MD | 06/05 09:40 | 5 | Lee Y D / Yoo Y S v A. Pangk. / Santoso | L | 1-2 | |
| Australian Open MD Qual | 06/04 01:55 | - | Defolky/Tam v Lee Y D / Yoo Y S | W | 0-2 | |
| Indonesia Masters XD | 12/02 03:40 | 2 | Lee Y D / Yoo Y S v Jung J W / Kim G J | L | 1-2 | |
| Indonesia Masters XD | 12/01 08:30 | 3 | Lee Y D / Yoo Y S v Choi / Park | W | 2-0 | |
| Indonesia Masters XD | 11/30 07:30 | 4 | Kang J W / Lee S J v Lee Y D / Yoo Y S | W | 1-2 | |
| Indonesia Masters XD | 11/29 05:40 | 5 | Lee Y D / Yoo Y S v Ren X / Tan Q | W | 2-1 | |
| Open d'Angleterre | 10/02 02:30 | 1 | Lee Y D / Yoo Y S v Li/Liu | W | 2-1 | |
| Open d'Angleterre | 10/01 02:30 | 2 | Lee Y D / Yoo Y S v Wang / Huang | W | 2-0 | |
| Open d'Angleterre | 09/30 04:00 | 3 | Lee Y D / Yoo Y S v Kamura T / Sonoda K | W | 2-1 | |
| Open d'Angleterre | 09/29 08:09 | - | Lee Y D / Yoo Y S v Liu W C / Lu C | W | 2-0 | |
| Open d'Angleterre | 09/29 06:50 | 4 | Lee Y D / Yoo Y S v Liu X / Lu K | W | 2-0 |