| Giraldilla Int. XD | 2018/11/29 05:05 | Cheuk Yiu Lee v Tanongsak Saensomboonsuk | L | 2-0 |
| Giraldilla Int. XD | 2018/11/28 04:30 | Tanongsak Saensomboonsuk v En Chia Chang | W | 2-0 |
| Giraldilla Int. XD | 2018/11/21 07:30 | Tanongsak Saensomboonsuk v Parupalli Kashyap | L | 0-2 |
| Indonesia Masters XD | 2018/11/14 05:55 | Wan Ho Son v Tanongsak Saensomboonsuk | L | 2-0 |
| Macau Open | 2018/11/01 10:55 | Tanongsak Saensomboonsuk v Hyun Il Lee | L | 1-2 |
| Macau Open | 2018/10/31 08:20 | Tanongsak Saensomboonsuk v R. M. V. Gurusaidutt | W | 2-1 |
| Korea Open | 2018/09/26 03:00 | Tzu Wei Wang v Tanongsak Saensomboonsuk | L | 2-0 |
| Japan Open | 2018/09/11 02:45 | Rasmus Gemke v Tanongsak Saensomboonsuk | L | 2-0 |
| Macau Open | 2018/11/01 10:00 | Guangzu Lu v Iskandar Zulkarnain | L | 2-0 |
| Macau Open | 2018/10/31 03:40 | Iskandar Zulkarnain v Yu Igarashi | W | 2-1 |
| Swiss Open WD Qual | 2018/09/19 10:40 | Krishna Adi Nugraha v Iskandar Zulkarnain | L | 2-1 |
| 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 |