| Indonesia Masters XD | 2018/05/23 14:00 | Jan O Jorgensen v Iskandar Zulkarnain | L | 2-1 |
| Indonesia Masters XD | 2018/05/22 07:30 | Iskandar Zulkarnain v Mohamed A Belarbi | W | 2-0 |
| Indonesia Masters XD | 2018/05/21 04:00 | Iskandar Zulkarnain v Rodion Alimov | W | 2-0 |
| China Masters | 2018/04/13 11:30 | Yu Hsien Lin v Iskandar Zulkarnain | L | 2-1 |
| China Masters | 2018/04/12 06:00 | Iskandar Zulkarnain v Hongyang Weng | W | 2-0 |
| China Masters | 2018/04/11 10:00 | Iskandar Zulkarnain v Pengbo Ren | W | 2-0 |
| Swiss Open WD Qual | 2018/02/22 18:40 | Jan O Jorgensen v Iskandar Zulkarnain | L | 2-0 |
| Swiss Open WD Qual | 2018/02/21 17:20 | Eetu Heino v Iskandar Zulkarnain | W | 1-2 |
| Giraldilla Int. XD | 2018/07/28 04:20 | Yu Igarashi v Ihsan Maulana Mustofa | L | 1-2 |
| Giraldilla Int. XD | 2018/07/27 02:30 | Yu Igarashi v Minoru Koga | W | 2-1 |
| Giraldilla Int. XD | 2018/07/26 05:15 | Hashiru Shimono v Yu Igarashi | W | 0-2 |
| Giraldilla Int. XD | 2018/07/25 04:10 | Naohiro Matsukawa v Yu Igarashi | W | 0-2 |
| Indonesia Masters XD | 2018/07/19 09:25 | Yu Igarashi v Bin Qiao | L | 0-2 |
| Indonesia Masters XD | 2018/07/18 04:30 | Sai Praneeth B. v Yu Igarashi | W | 1-2 |
| Giraldilla Int. XD | 2018/06/20 21:40 | Kwang Hee Heo v Yu Igarashi | L | 2-0 |
| Giraldilla Int. XD | 2018/05/10 08:25 | Yu Igarashi v Tommy Sugiarto | L | 0-2 |