| Thailand Open MD | 01/19 09:40 | 5 | Christiansen/Nohr v Isara / Jongjit | - | Retired | |
| Thailand Open MD | 01/12 07:30 | 5 | Ellis M / Langridge C v Isara / Jongjit | L | 2-0 | |
| Masters d'Espagne - Doubles Hommes | 02/20 14:15 | 4 | Mairs G / Wolfenden T v Isara / Jongjit | L | 2-0 | |
| Masters d'Espagne - Doubles Hommes | 02/18 12:00 | 5 | Chew P / Chew R v Isara / Jongjit | W | 0-2 | |
| Asia Team Championships MD | 02/12 08:30 | - | Hoki/Kobayashi v Isara / Jongjit | W | 0-2 | |
| Macau Open 2019, MD | 10/30 02:10 | 5 | Isara / Jongjit v Mak H C / Or C C | - | Retired | |
| Open de France - Doubles Hommes | 10/22 12:30 | 5 | Isara / Jongjit v A. Pangk. / Santoso | L | 0-2 | |
| Denmark Open MD | 10/16 14:40 | 5 | Isara / Jongjit v Endo H / Watanabe Y | L | 0-2 | |
| Fuzhou China Open 2019, MD | 09/17 02:00 | 5 | Ardianto/Alfian v Isara / Jongjit | L | 2-0 | |
| World Championships MD | 08/19 15:20 | 6 | Isara / Jongjit v Dunn/Hall | L | 1-2 | |
| Hyderabad Open 2019, MD | 08/07 09:30 | 5 | Kang M H / Kim J H v Isara / Jongjit | L | 2-1 | |
| Thailand Open MD | 07/31 03:45 | 5 | Isara / Jongjit v Huang/Liu | L | 1-2 |