| Masters d'Indonésie - Femmes - Qualif. | 01/23 04:30 | 3 | Ester N. T. Wardoyo v Pitchamon Opatniput | - | home | |
| Korea Masters Women | 11/08 10:55 | 5 | Pitchamon Opatniput v Natsuki Nidaira | L | 0-1 | |
| KL Masters Women | 11/05 06:10 | 1 | Pitchamon Opatniput v Kim, Joo Eun | W | 2-0 | |
| KL Masters Women | 11/04 05:50 | 2 | Pitchamon Opatniput v Su Yu Chen | W | 2-0 | |
| KL Masters Women | 11/03 07:05 | 3 | Park, Ga Eun v Pitchamon Opatniput | W | 0-2 | |
| KL Masters Women | 11/02 05:20 | - | Pitchamon Opatniput v Mansi Singh | W | 2-0 | |
| KL Masters Women | 11/01 02:55 | 5 | Pitchamon Opatniput v Nutnalin Rattanapanuwong | W | 2-0 | |
| Hong Kong Open 2019, WS, Qualification | 09/12 03:25 | 3 | Pitchamon Opatniput v Malvika Bansod | L | Retired | |
| Indonesia Masters Women | 09/07 03:00 | 4 | Pitchamon Opatniput v Tomoka Miyazaki | L | 1-2 | |
| Indonesia Masters Women | 09/06 03:35 | 5 | Pitchamon Opatniput v Rosy Oktavia Pancasari | W | 2-1 | |
| Taipei Open Women | 06/24 04:45 | 2 | Beiwen Zhang v Pitchamon Opatniput | L | 2-0 | |
| Taipei Open Women | 06/23 06:10 | 3 | Shuo Yun Sung v Pitchamon Opatniput | W | 1-2 | |
| Taipei Open Women | 06/22 06:55 | 4 | Yu-Hsun Huang v Pitchamon Opatniput | W | 0-2 | |
| Taipei Open Women | 06/21 09:15 | 5 | Pitchamon Opatniput v Su Yu Chen | W | 2-1 | |
| Thailand Open Women | 05/31 05:15 | 5 | Carolina Marin v Pitchamon Opatniput | L | 2-0 | |
| Thailand Open 2019, WS, Qualification | 05/30 08:20 | - | Srivedya Gurazada v Pitchamon Opatniput | W | 0-2 | |
| Thailand Open 2019, WS, Qualification | 05/30 03:00 | - | Thet Htar Thuzar v Pitchamon Opatniput | W | 0-2 | |
| China Masters Women | 03/16 07:20 | 4 | Pitchamon Opatniput v Lu Chen | L | 0-2 | |
| China Masters Women | 03/15 03:15 | 5 | Pitchamon Opatniput v Keisha Fatimah Az Zahra | W | 2-0 | |
| Thailand Int. Women | 03/11 06:40 | - | Thuy Linh Nguyen v Pitchamon Opatniput | L | 2-1 | |
| Thailand Int. Women | 03/10 04:20 | - | Rituparna Das v Pitchamon Opatniput | W | 0-2 | |
| Masters de Thaïlande - Femmes | 02/02 06:20 | 4 | Pitchamon Opatniput v Supanida Katethong | L | 0-2 | |
| Masters de Thaïlande - Femmes | 02/01 07:00 | 5 | Pitchamon Opatniput v Lauren Lam | W | 2-0 | |
| Vietnam Open Women | 09/28 05:20 | 5 | Pitchamon Opatniput v Jin Wei Goh | L | 1-2 | |
| Denmark Masters Women | 06/12 08:40 | - | Pitchamon Opatniput v Shuo Yun Sung | W | 2-1 | |
| Denmark Masters Women | 06/11 14:40 | - | Pitchamon Opatniput v Hsiang Ti Lin | W | 2-1 | |
| Denmark Masters Women | 06/11 08:40 | - | Pitchamon Opatniput v Eoon, Qi Xuan | W | 2-0 | |
| Denmark Masters Women | 06/10 10:40 | - | Wen Chi Hsu v Pitchamon Opatniput | W | 0-2 | |
| Denmark Masters Women | 06/10 10:20 | - | Pitchamon Opatniput v Yulia Y Susanto | W | 2-0 | |
| Denmark Masters Women Qual | 06/09 18:30 | - | Frederikke Ostergaard v Pitchamon Opatniput | W | 0-2 |