Stadium: Court 2 Round: 25 Ground: Hardcourt outdoor
| Kofu, Singles W-WITF-JPN-02A | 2018/06/14 01:00 | Haruna Arakawa v Momoko Kobori | 1-6,6-0,3-6 |
| ITF W25 Cherbourg | 2021/10/07 10:40 | Momoko Kobori v Indy De Vroome | 5-7,6-7 |
| ITF W25 Cherbourg | 2021/10/05 08:25 | Audrey Albie v Momoko Kobori | 6-2,2-6,5-7 |
| ITF W80 Le Neubourg | 2021/09/28 10:00 | Momoko Kobori v Iryna Shymanovich | 2-6,5-7 |
| ITF W80 Le Neubourg | 2021/09/27 10:20 | Momoko Kobori v Ramirez, Evita | 6-3,6-4 |
| ITF W80 Le Neubourg | 2021/09/26 11:05 | Momoko Kobori v Diana Martynov | 6-2,6-4 |
| ITF W25 Santarem | 2021/09/21 10:45 | Momoko Kobori v Jia-Jing Lu | 1-6,5-7 |
| ITF W60 Caldas da Rainha | 2021/09/12 15:00 | Momoko Kobori v Bogdan, Elena | 6-2,4-6,8-10 |
| ITF W25 Lisbon | 2021/07/06 17:05 | Olivia Gadecki v Momoko Kobori | 6-4,6-2 |
| ITF - W15 Monastir | 2022/01/01 10:30 | Parazinskaite, Akvile v Haruna Arakawa | 7-5,6-4 |
| ITF - W15 Monastir | 2021/12/31 08:30 | Hong Yi Cody Wong v Haruna Arakawa | 6-0,2-6,6-7 |
| ITF - W15 Monastir | 2021/12/30 09:50 | Man Ying Maggie Ng v Haruna Arakawa | 1-6,6-7 |
| ITF - W15 Monastir | 2021/12/29 11:15 | Selya Rakki v Haruna Arakawa | 5-7,2-6 |
| ITF W25 Saint Palais Sur Mer | 2021/09/07 13:30 | Haruna Arakawa v Maria Mateas | 3-6,6-7 |
| ITF W25 Marbella | 2021/09/01 12:50 | Haruna Arakawa v Carlota Martinez Cirez | 6-7,4-6 |
| ITF W25 Vigo | 2021/08/25 09:00 | Haruna Arakawa v Olivia Gadecki | 2-6,2-6 |
| ITF W25 Ourense | 2021/08/17 08:00 | Haruna Arakawa v Ya-Hsuan Lee | 0-6,7-6,3-6 |