| Akita Masters | 2019/08/15 02:15 | Kazumasa Sakai v Yu Igarashi | W | 1-2 |
| Akita Masters | 2019/08/14 03:20 | Yu Igarashi v Ji Hoon Choi | W | 2-0 |
| US Open | 2019/07/11 01:55 | Yu Igarashi v H.S. Prannoy | L | 1-2 |
| Canada Open | 2019/07/03 17:10 | Yu Igarashi v Chun-Yi Lin | L | 0-2 |
| Australian Open - Kval | 2019/06/04 00:45 | Yu Igarashi v Tanongsak Saensomboonsuk | L | 1-2 |
| New Zealand Open | 2019/05/01 04:40 | Yu Igarashi v Kanta Tsuneyama | L | 0-2 |
| New Zealand Open | 2019/04/30 20:00 | Yu Igarashi v Kanta Tsuneyama | L | 0-2 |
| Singapore Open - Kval | 2019/04/09 05:07 | Parupalli Kashyap v Yu Igarashi | L | 2-1 |
| Akita Masters | 2019/08/15 05:25 | Koki Watanabe v Pannawit Thongnuam | W | 2-0 |
| Akita Masters | 2019/08/14 02:10 | Koki Watanabe v Minoru Koga | W | 2-0 |
| US Open | 2019/07/11 22:00 | Dong Keun Lee v Koki Watanabe | L | 2-1 |
| US Open | 2019/07/10 22:10 | Victor Svendsen v Koki Watanabe | W | 0-2 |
| Canada Open | 2019/07/06 21:30 | Koki Watanabe v Shifeng Li | L | 1-2 |
| Canada Open | 2019/07/05 22:00 | Rajiv Ouseph v Koki Watanabe | W | 0-2 |
| Canada Open | 2019/07/04 21:55 | Lanxi Lei v Koki Watanabe | W | 1-2 |
| Canada Open | 2019/07/03 19:00 | Koki Watanabe v H.S. Prannoy | W | 2-0 |