| ITF Korea F8 MD | 09/05 05:25 | 26 | Katayama S / Sato B v Kim/Lim | 6-7,6-7 | |
| ITF Japan F8 MD | 06/16 05:00 | 27 | Ito T / Uesugi K v Katayama S / Sato B | 6-3,5-7,13-11 | |
| ITF China F13 MD | 08/14 05:30 | 28 | Katayama S / Sato B v Hung J-C / Lin W-D | 6-4,6-3 | |
| ITF China F13 MD | 08/13 07:00 | 27 | Chiu Y H / Tan L-W v Katayama S / Sato B | 4-6,3-6 | |
| ITF China F12 MD | 08/06 12:10 | 28 | Katayama S / Sato B v Kibi Y / Onozawa A | 3-6,3-6 | |
| ITF China F12 MD | 08/05 11:00 | 27 | Bai Y / Gong M-X v Katayama S / Sato B | 6-7,4-6 | |
| ITF Japan F8 MD | 06/25 04:20 | - | Katayama S / Sato B v Mclachlan B / Mclachlan R | 3-6,7-5,10-6 |