| ITF W35 Hamamatsu | 11/04 02:30 | - | Hiromi Abe v Natsuki Irokawa | 6-2,6-4 | |
| UTR Pro Yokohama Women | 08/19 01:00 | - | Sara Yoshida v Natsuki Irokawa | CANC | |
| UTR Pro Yokohama Women | 08/19 00:00 | - | Miyu Takiguchi v Natsuki Irokawa | CANC | |
| UTR Pro Yokohama Women | 08/19 00:00 | - | Yuki Morishita v Natsuki Irokawa | CANC | |
| UTR Pro Yokohama Women | 08/19 00:00 | - | Aoi Yoshida v Natsuki Irokawa | CANC | |
| UTR Pro Yokohama Women | 08/18 03:15 | - | Natsuki Irokawa v Ayane Takagi | Walkover | |
| UTR Pro Yokohama Women | 02/01 01:20 | 28 | Henry Cejudo v Natsuki Irokawa | 6-4,7-6 | |
| UTR Pro Yokohama Women | 01/31 01:00 | - | Kurumi Tamura v Natsuki Irokawa | 3-6,6-7 | |
| UTR Pro Yokohama Women | 01/29 02:10 | - | Natsuki Irokawa v Azusa Ishii | 6-1,6-2 | |
| UTR Pro Yokohama Women | 01/28 01:00 | - | Natsuki Irokawa v Mua Shigeta | 2-6,6-4,6-1 | |
| UTR Pro Yokohama Women | 01/27 01:00 | - | Natsuki Irokawa v Mitsumi Kawasaki | 6-0,6-4 | |
| UTR Pro Noda Women | 01/18 02:00 | 28 | Ayumi Miyamoto v Natsuki Irokawa | 7-6,6-1 |