| ITF W60 Fukuoka | 05/08 03:20 | 25 | Shiho Akita v Su Jeong Jang | 6-4,2-6,6-3 | |
| ITF W60 Fukuoka | 05/06 04:50 | 45 | Kyoka Okamura v Shiho Akita | 1-6,5-7 | |
| ITF W60 Fukuoka | 05/06 01:00 | 45 | Yuka Matsumoto v Shiho Akita | 1-6,1-6 | |
| ITF W25 Hong Kong | 04/10 04:40 | 25 | [326] Eri Hozumi v Shiho Akita [474] | 7-5,3-6,6-2 | |
| ITF W25 Hong Kong | 04/09 03:45 | 54 | [474] Shiho Akita v Ying Zhang [374] | 6-3,6-2 | |
| ITF W25 Kashiwa | 04/04 04:45 | 26 | [316] Haruka Kaji v Shiho Akita [459] | Retired | |
| ITF W25 Kashiwa | 04/02 04:55 | 25 | [459] Shiho Akita v Katherine Sebov [237] | 4-6,7-5,6-1 | |
| ITF W25 Kofu | 03/25 05:50 | 45 | [454] Shiho Akita v Chihiro Muramatsu [364] | 2-6,3-6 | |
| ITF W25 Kofu | 03/25 02:00 | 45 | Su Jeong Jang v Shiho Akita | 3-6,3-6 | |
| ITF W25 Kofu | 03/18 00:30 | 45 | Miharu Imanishi v Shiho Akita | 6-4,4-6,10-7 | |
| ITF W25 Yokohama | 03/06 01:30 | 25 | [451] Shiho Akita v Jia-Jing Lu [186] | 3-6,0-6 | |
| ITF W25 Yokohama | 03/05 01:30 | 45 | [451] Shiho Akita v Moyuka Uchijima [362] | 6-1,7-5 | |
| ITF W25 Yokohama | 03/04 00:30 | 45 | Eri Hozumi v Shiho Akita | 2-6,3-6 | |
| ITF W60 Kyoto | 02/18 04:00 | 45 | [356] Miyabi Inoue v Shiho Akita [452] | 6-4,6-3 | |
| ITF W60 Launceston | 01/27 23:00 | 45 | [450] Shiho Akita v Kai-Chen Chang [398] | 5-7,6-4,11-13 | |
| ITF Women Hamamatsu | 10/18 03:15 | 26 | Shiho Akita v Susan Bandecchi | 2-6,7-6,3-6 | |
| ITF Women Hamamatsu | 10/16 01:00 | 25 | Shiho Akita v Ayumi Miyamoto | 6-1,6-3 | |
| ITF Women Makinohara | 10/12 01:00 | 27 | [250] Momoko Kobori v Shiho Akita [457] | 7-5,6-2 | |
| ITF Women Makinohara | 10/11 03:50 | 26 | [416] Haruna Arakawa v Shiho Akita [457] | 1-6,4-6 | |
| ITF Women Makinohara | 10/09 00:30 | 25 | Marina Yudanov v Shiho Akita | 2-6,2-6 | |
| ITF Women Nanao | 08/30 03:00 | 26 | Jia-Jing Lu v Shiho Akita | 6-3,7-5 | |
| ITF Women Nanao | 08/29 06:40 | 25 | [462] Shiho Akita v Riko Sawayanagi [443] | 6-7,6-1,7-5 | |
| ITF Women Tsukuba | 08/22 00:30 | 25 | Shiho Akita v Risa Ushijima | 2-6,2-6 | |
| ITF Women Nonthaburi | 08/13 02:00 | 25 | [315] Michika Ozeki v Shiho Akita [463] | 6-1,6-2 | |
| ITF Women Nonthaburi | 08/08 02:00 | 26 | [463] Shiho Akita v Junri Namigata [223] | Retired | |
| ITF Women Nonthaburi | 08/06 02:30 | 25 | [459] Shiho Akita v Rutuja Bhosale [388] | 6-4,1-6,6-2 | |
| ITF Women Granby | 07/24 22:25 | 25 | [310] Astra Sharma v Shiho Akita [453] | 7-6,6-1 | |
| ITF Women Gatineau | 07/16 14:00 | 25 | [287] Sophie Chang v Shiho Akita [450] | 6-4,5-7,6-1 | |
| ITF Women Honolulu | 07/10 23:20 | 25 | [306] Usue Maitane Arconada v Shiho Akita [450] | 6-0,1-6,7-6 | |
| ITF Women Daegu | 06/20 01:00 | 25 | Shiho Akita v Hanna Chang | 0-6,5-7 |