| ITF W80 Gifu | 05/01 01:00 | 25 | [227] Momoko Kobori v Yue Yuan [362] | 6-7,0-6 | |
| ITF W25 Hongkong | 04/14 02:00 | 28 | [353] Maddison Inglis v Momoko Kobori [231] | 6-2,5-7,6-4 | |
| ITF W25 Hongkong | 04/12 09:30 | 27 | [231] Momoko Kobori v Mai Hontama [363] | 6-0,7-6 | |
| ITF W25 Hongkong | 04/11 05:15 | 26 | Momoko Kobori v Natalia Siedliska | 5-7,6-0,6-2 | |
| ITF W25 Hongkong | 04/09 05:45 | 25 | Momoko Kobori v Ho Ching Wu | 6-1,6-2 | |
| ITF W25 Kashiwa | 04/02 03:20 | 25 | [242] Momoko Kobori v Mayo Hibi [257] | 2-6,2-6 | |
| ITF W25 Kofu | 03/30 01:00 | 28 | Momoko Kobori v Lara Salden | 1-6,3-6 | |
| ITF W25 Kofu | 03/29 01:00 | 27 | [255] Momoko Kobori v Na-Lae Han [195] | 4-6,6-3,7-5 | |
| ITF W25 Kofu | 03/28 01:00 | 26 | [255] Momoko Kobori v Emina Bektas [388] | 6-4,3-6,6-0 | |
| ITF W25 Kofu | 03/26 01:00 | 25 | [91] Luksika Kumkhum v Momoko Kobori [255] | 6-3,5-7,3-6 | |
| ITF W25 Kofu | 03/22 02:00 | 27 | [255] Momoko Kobori v Giulia Gatto Monticone [211] | 6-7,2-6 | |
| ITF W25 Kofu | 03/21 04:40 | 26 | [168] Ankita Raina v Momoko Kobori [255] | 6-7,4-6 | |
| ITF W25 Kofu | 03/19 02:10 | 25 | Anna Morgina v Momoko Kobori | 5-7,2-6 | |
| ITF W25 Nishi-Tama | 03/14 01:00 | 26 | [304] Daria Lopatetska v Momoko Kobori [245] | 6-1,7-5 | |
| ITF W25 Nishi-Tama | 03/12 05:10 | 25 | [314] Miharu Imanishi v Momoko Kobori [245] | 5-7,2-6 | |
| ITF W60 Kyoto | 02/21 04:00 | 26 | [252] Momoko Kobori v Kai-Lin Zhang [243] | 2-6,4-6 | |
| ITF W60 Kyoto | 02/19 04:10 | 25 | Abbie Myers v Momoko Kobori | 6-2,6-7,3-6 | |
| ITF W60 Launceston | 01/28 04:35 | 45 | [251] Momoko Kobori v Isabelle Wallace [346] | 1-6,4-6 | |
| ITF W60 Launceston | 01/28 01:10 | 45 | Momoko Kobori v Bojana Marinkov | 4-6,6-2,10-4 | |
| ITF W25 Hongkong | 01/10 02:00 | 26 | [253] Momoko Kobori v Daria Lopatetska [489] | 3-6,3-6 | |
| ITF W25 Hongkong | 01/08 04:15 | 25 | [253] Momoko Kobori v Haruka Kaji [324] | 6-3,6-0 | |
| ITF W25 Hongkong | 01/02 02:00 | 25 | [256] Momoko Kobori v Eudice Chong [494] | 4-6,5-7 | |
| WTA Taipei | 11/11 02:00 | 64 | [201] Su Jeong Jang v Momoko Kobori [250] | 6-1,6-4 | |
| ITF Women Hamamatsu | 10/17 01:00 | 25 | [405] Mana Ayukawa v Momoko Kobori [253] | 7-6,2-6,6-2 | |
| ITF Women Makinohara | 10/14 02:00 | 29 | [250] Momoko Kobori v Junri Namigata [258] | 6-2,6-3 | |
| ITF Women Makinohara | 10/13 01:00 | 28 | Momoko Kobori v Ayumi Miyamoto | 6-0,4-6,6-3 | |
| ITF Women Makinohara | 10/12 01:00 | 27 | [250] Momoko Kobori v Shiho Akita [457] | 7-5,6-2 | |
| ITF Women Makinohara | 10/11 02:55 | 26 | Momoko Kobori v Mei Yamaguchi | 6-1,6-3 | |
| ITF Women Makinohara | 10/10 00:30 | 25 | Momoko Kobori v Sakura Hondo | 7-5,6-1 | |
| WTA Tokyo | 09/15 09:00 | 45 | [68] Magda Linette v Momoko Kobori [248] | 7-6,6-3 |