Stadium: Court 8 Round: 26 Ground: Clay
| Challenger Kobe MD | 2019/11/05 06:55 | Ichikawa/Watanabe v Matsui T / Watanuki Y | 6-3,5-7,4-10 |
| Nanchang, Doubles M-ITF-CHN-16A | 2019/10/02 08:05 | Ichikawa/Watanabe v Ho R / Yeung P L | 2-6,6-2,7-10 |
| Nanchang, Doubles M-ITF-CHN-16A | 2019/09/25 06:05 | Ichikawa/Watanabe v Cheruku V / Peranamallur C V | 4-6,7-6,5-10 |
| Hua Hin, Doubles M-ITF-THA-07A | 2019/09/04 08:25 | Ichikawa/Watanabe v Fukuda S / Moritani S | 2-6,3-6 |
| Hua Hin, Doubles M-ITF-THA-07A | 2019/08/28 09:20 | Chen T / Yu B v Ichikawa/Watanabe | 6-2,2-6,10-4 |
| Hua Hin, Doubles M-ITF-THA-07A | 2019/08/20 06:25 | Ichikawa/Watanabe v Green C / Peniston R | 3-6,6-7 |
| Gimcheon, Doubles M-ITF-KOR-03A | 2019/06/20 07:05 | Ichikawa/Watanabe v Kim Y S / Kwon O-H | 4-6,6-2,8-10 |
| Gimcheon, Doubles M-ITF-KOR-03A | 2019/06/19 04:35 | Ichikawa/Watanabe v Hong S C / Shin S | 6-3,2-6,10-6 |