Stadium: Court 10 Round: 27 Ground: Hardcourt outdoor
| Hong Kong, Doubles M-ITF-HKG-04A | 2019/01/01 08:00 | Ratiwatana Sa / Ratiwatana So v Bai Y / Xia Z | 6-1,6-3 |
| Challenger Bangalore MD | 2018/11/12 13:00 | Kadhe A / Myneni S v Ratiwatana Sa / Ratiwatana So | 6-3,3-6,11-9 |
| Challenger Kaohsiung MD | 2018/09/22 09:30 | Ratiwatana Sa / Ratiwatana So v Cheng-Peng Hsieh/Tsung-Hua Yang | 3-6,4-6 |
| Challenger Kaohsiung MD | 2018/09/21 10:45 | Brkic/Rodionov v Ratiwatana Sa / Ratiwatana So | 4-6,5-7 |
| Challenger Kaohsiung MD | 2018/09/19 04:00 | Lawson A / Li Z v Ratiwatana Sa / Ratiwatana So | 4-6,5-7 |
| Coupe Davis | 2018/09/16 03:00 | Ratiwatana Sa / Ratiwatana So v Ballout J / Samaha G | 6-0,6-3 |
| Zhangjiagang, China, Doubles | 2018/09/05 05:50 | Peng H-Y / Yang T-H v Ratiwatana Sa / Ratiwatana So | 7-6,7-6 |
| Jinan, China, Doubles | 2018/08/10 12:00 | Ratiwatana Sa / Ratiwatana So v Cheng-Peng Hsieh/Tsung-Hua Yang | 1-6,0-6 |
| Hong Kong, Doubles M-ITF-HKG-04A | 2019/01/01 08:10 | Saito T / Sekiguchi S v Hong S C / Hua R | 6-4,6-7,10-6 |
| ITF Japan F4 MD | 2018/03/29 05:20 | Saito T / Sekiguchi S v Moritani S / Takeuchi K | 4-6,4-6 |
| ITF Japan F4 MD | 2018/03/27 05:45 | Saito T / Sekiguchi S v Grills J / Wu T-L | 6-4,6-4 |