| WTA Hiroshima | 09/09 08:15 | 45 | [135] Amanda Anisimova v Momoko Kobori [252] | 6-3,6-3 | |
| ITF Women Nanao | 08/29 06:05 | 25 | Momoko Kobori v Risa Ushijima | 5-7,2-6 | |
| ITF Women Tsukuba | 08/25 03:00 | 28 | [314] Xiyu Wang v Momoko Kobori [252] | 4-6,6-3,6-3 | |
| ITF Women Tsukuba | 08/24 01:00 | 27 | [435] Chihiro Muramatsu v Momoko Kobori [252] | 2-6,3-6 | |
| ITF Women Tsukuba | 08/23 00:30 | 26 | Kanako Morisaki v Momoko Kobori | 7-6,3-6,4-6 | |
| ITF Women Tsukuba | 08/21 00:30 | 25 | [446] Riko Sawayanagi v Momoko Kobori [252] | 4-6,3-6 | |
| WTA Nanchang | 07/23 09:00 | 25 | [249] Momoko Kobori v Fang Ying Xun [251] | 6-7,0-6 | |
| WTA Nanchang Qual | 07/22 11:00 | 64 | [249] Momoko Kobori v Shilin Xu [286] | 6-4,2-6,4-6 | |
| WTA Nanchang Qual | 07/21 10:35 | 45 | [249] Momoko Kobori v Qianhui Tang [204] | 6-4,6-2 | |
| ITF Women Contrexeville | 07/11 09:30 | 25 | [116] Ysaline Bonaventure v Momoko Kobori [245] | 6-3,7-6 | |
| ITF Women Denain | 07/04 08:30 | 25 | [311] Mari Osaka v Momoko Kobori [245] | 6-1,6-1 | |
| ITF Women Perigueux | 06/25 09:30 | 25 | [246] Momoko Kobori v Cristina Bucsa [216] | 1-6,3-6 | |
| ITF Women Montpellier | 06/19 12:30 | 25 | [250] Momoko Kobori v Nathaly Kurata [438] | 7-6,3-6,5-7 | |
| ITF Women Kofu | 06/15 04:30 | 27 | [328] Misaki Doi v Momoko Kobori [253] | 6-4,7-5 | |
| ITF Women Kofu | 06/14 01:00 | 26 | [463] Haruna Arakawa v Momoko Kobori [253] | 1-6,6-0,3-6 | |
| ITF Women Kofu | 06/13 03:30 | 25 | Mana Ayukawa v Momoko Kobori | 4-6,4-6 | |
| ITF Women Karuizawa | 05/27 02:00 | 29 | [322] Miyabi Inoue v Momoko Kobori [296] | 0-6,2-6 | |
| ITF Women Karuizawa | 05/26 02:00 | 28 | [296] Momoko Kobori v Tammi Patterson [326] | 5-7,6-4,6-4 | |
| ITF Women Karuizawa | 05/25 01:00 | 27 | Kanako Morisaki v Momoko Kobori | 2-6,6-7 | |
| ITF Women Karuizawa | 05/24 04:45 | 26 | Caroline Werner v Momoko Kobori | 2-6,4-6 | |
| ITF Women Karuizawa | 05/22 01:00 | 25 | Ran Miyachi v Momoko Kobori | 2-6,0-6 | |
| ITF Women Kurume | 05/15 04:05 | 25 | [393] Misa Eguchi v Momoko Kobori [295] | 2-6,6-3,6-0 | |
| ITF Women Fukuoka | 05/12 04:20 | 28 | [176] Katie Boulter v Momoko Kobori [325] | 6-1,6-4 | |
| ITF Women Fukuoka | 05/11 03:35 | 27 | [325] Momoko Kobori v Ivana Jorovic [226] | 3-6,7-5,6-2 | |
| ITF Women Fukuoka | 05/10 01:00 | 26 | Su Jeong Jang v Momoko Kobori | 6-7,4-6 | |
| ITF Women Fukuoka | 05/08 05:25 | 25 | Momoko Kobori v Naho Sato | 6-3,2-6,6-1 | |
| ITF Women Gifu | 05/04 03:20 | 27 | Moyuka Uchijima v Momoko Kobori | 4-6,6-3,6-4 | |
| ITF Women Gifu | 05/03 02:00 | 26 | [345] Momoko Kobori v Miyabi Inoue [323] | 6-3,6-3 | |
| ITF Women Gifu | 05/01 01:00 | 25 | Mei Yamaguchi v Momoko Kobori | 6-4,3-6,3-6 | |
| ITF Women Osaka | 04/12 01:00 | 26 | [394] Shiho Akita v Momoko Kobori [334] | 3-6,6-2,6-2 |