| US Open | 2019/07/11 01:55 | Yu Igarashi v H.S. Prannoy | L | 1-2 |
| Open del Canada | 2019/07/03 17:10 | Yu Igarashi v Chun-Yi Lin | L | 0-2 |
| Open d'Australia - Qual. | 2019/06/04 00:45 | Yu Igarashi v Tanongsak Saensomboonsuk | L | 1-2 |
| Open di Nuova Zelanda | 2019/05/01 04:40 | Yu Igarashi v Kanta Tsuneyama | L | 0-2 |
| Open di Nuova Zelanda | 2019/04/30 20:00 | Yu Igarashi v Kanta Tsuneyama | L | 0-2 |
| Open di Singapore - Qual. | 2019/04/09 05:07 | Parupalli Kashyap v Yu Igarashi | L | 2-1 |
| Open di Singapore - Qual. | 2019/04/09 02:35 | Sony Dwi Kuncoro v Yu Igarashi | L | 2-1 |
| Masters d'Orleans | 2019/03/21 13:40 | Eetu Heino v Yu Igarashi | L | 2-0 |
| Internazionali di Osaka - Qual. | 2019/04/03 03:50 | Ji Hoon Choi v Yusei Baba | L | 1-2 |
| All England Open | 2016/12/06 06:30 | Ji Hoon Choi v Kai Guo | L | 0-2 |