| China Masters | 03/20 01:00 | 6 | Ikhsan L I Rumbay v Kai Cheng | L | 0-2 | |
| Indonesia Masters | 10/25 11:25 | 5 | Ikhsan L I Rumbay v Takuma Obayashi | L | 1-2 | |
| Indonesia Masters | 10/25 03:00 | 6 | Ikhsan L I Rumbay v Samuel Lee | W | 2-1 | |
| Indonesia Masters | 09/07 06:20 | 4 | Ikhsan L I Rumbay v Po-Wei Wang | L | 1-2 | |
| Indonesia Masters | 09/06 06:25 | 5 | Chia Hao Lee v Ikhsan L I Rumbay | W | 0-2 | |
| Indonesia Masters | 09/05 11:20 | 6 | Meiraba Luwang Maisnam v Ikhsan L I Rumbay | W | 1-2 | |
| Masters d'Indonésie - Qualif. | 01/24 01:40 | - | Sai Praneeth, B. v Ikhsan L I Rumbay | L | 2-1 | |
| Australian Open | 11/18 04:40 | 3 | Guang Zu Lu v Ikhsan L I Rumbay | L | 2-0 | |
| Australian Open | 11/17 04:20 | 4 | Ikhsan L I Rumbay v Joo Ven Soong | W | 2-1 | |
| Australian Open | 11/15 22:40 | 5 | Lu, C. H. v Ikhsan L I Rumbay | W | 0-2 | |
| Indonesia Masters | 10/19 06:00 | 5 | June Wei Cheam v Ikhsan L I Rumbay | L | 2-0 | |
| Indonesia Masters | 10/18 11:00 | 6 | Shun Yang Lee v Ikhsan L I Rumbay | W | 0-2 | |
| Taipei Open | 07/20 08:00 | 5 | Ikhsan L I Rumbay v Tzu Wei Wang | L | 0-2 | |
| Denmark Masters | 06/10 07:40 | - | Toby Penty v Ikhsan L I Rumbay | L | 2-0 | |
| Italian Int. | 06/04 14:50 | - | Ikhsan L I Rumbay v Adinata, Christian | L | 0-2 | |
| Italian Int. | 06/04 07:40 | - | Ikhsan L I Rumbay v Svendsen, Victor | W | 2-0 | |
| Italian Int. | 06/03 14:05 | - | Ikhsan L I Rumbay v Kiran George | W | 2-1 | |
| Orléans Masters | 03/30 13:20 | - | Ikhsan L I Rumbay v Yin Chak Chan | L | 0-2 | |
| Orléans Masters | 03/29 17:00 | 6 | Jun Hao Leong v Ikhsan L I Rumbay | W | 0-2 | |
| Malaysia Int. | 11/14 09:45 | - | Ikhsan L I Rumbay v Zhou, Z. Q. | L | 1-2 | |
| Indonesia International Challenge 2019, MS | 10/27 08:00 | 1 | Ikhsan L I Rumbay v Kuncoro, Sony Dwi | W | 2-0 | |
| Indonesia International Challenge 2019, MS | 10/26 09:30 | 2 | Ikhsan L I Rumbay v Jia Heng Jason Teh | W | 2-0 | |
| Indonesia International Challenge 2019, MS | 10/25 08:55 | 3 | Tien Minh Nguyen v Ikhsan L I Rumbay | W | 1-2 | |
| Indonesia International Challenge 2019, MS | 10/24 07:40 | 4 | Ikhsan L I Rumbay v Aidil, Sholeh Ali Sadikin | W | 2-1 | |
| Indonesia International Challenge 2019, MS | 10/23 03:15 | 5 | Ikhsan L I Rumbay v Tan, Muhammad Elaf Wei | W | 2-0 | |
| Indonesia International Challenge 2019, MS | 10/22 09:35 | 6 | Ikhsan L I Rumbay v Shamsul Muzli, Muhammad Izzuddin | W | 2-0 | |
| Indonesia Masters | 10/04 08:10 | 3 | Saputra, Vicky Angga v Ikhsan L I Rumbay | L | 2-0 | |
| Indonesia Masters | 10/03 11:40 | 4 | Ikhsan L I Rumbay v Mikhael, Jovi | W | 2-0 | |
| Indonesia Masters | 10/02 14:00 | 5 | Ade Resky Dwicahyo v Ikhsan L I Rumbay | W | 1-2 | |
| Vietnam Open | 09/12 02:00 | 5 | Ikhsan L I Rumbay v Lan Xi Lei | L | 0-2 |