| 27.03.23 | q 2 | Alisa Baranovska | Yuna Ohashi | 6-1, Yuna Ohashi - retired |  | match details |  W15 Monastir | Hard |
| 20.03.23 | q 2 | Alisa Baranovska | Yuna Ohashi | 7-63, 6-2 | | match details | W15 Monastir | Hard |
| 22.11.22 | qual. | Rikke De Koning | Yuna Ohashi | 7-5, Yuna Ohashi - retired | | match details | W15 Monastir | Hard |
| 21.11.22 | q 2 | Yuna Ohashi | Naomi Jackson | 6-3, 6-0 |  | match details |
| 15.11.22 | qual. | Warda Ait El Bachir | Yuna Ohashi | 6-4, 6-3 | | match details | W15 Monastir | Hard |
| 14.11.22 | q 2 | Yuna Ohashi | Aimee Bromfield | 6-0, 6-1 | | match details |
| 09.10.22 | q 1 | Michiru Furuya | Yuna Ohashi | 6-4, 6-4 | | match details |  W25 Hamamatsu | Carpet |
| 03.10.22 | q 1 | Yuna Ohashi | Yu-Chieh Hsieh | 6-2, 7-5 | | match details | W25 Makinohara | Grass |
| 03.10.22 | qual. | Rinko Matsuda | Yuna Ohashi | 6-4, 1-0, Yuna Ohashi - retired | | match details |
| 26.09.22 | qual. | Rio Tsuda | Yuna Ohashi | 6-3, 6-1 | | match details | W25 Nanao | Carpet |
| 25.09.22 | q 2 | Yuna Ohashi | Hana Otsubo | 6-3, 6-2 | | match details |
| 21.06.22 | 1st round | Natsumi Kawaguchi | Yuna Ohashi | 6-2, 2-1, Yuna Ohashi - retired | | match details |  W15 Chiang | Hard |
| 13.06.22 | q 2 | Kamonwan Yodpetch | Yuna Ohashi | 4-6, 6-2, 10-7 | | match details | W15 Chiang | Hard |
| 06.06.22 | q 2 | Natsumi Kawaguchi | Yuna Ohashi | 6-2, 6-4 | | match details | W25 Chiang | Hard |
| 05.06.22 | q 1 | Yuna Ohashi | Rada Manataweewat | 6-3, 7-65 | | match details |
| 19.04.22 | qual. | Patcharin Cheapchadej | Yuna Ohashi | 6-1, 6-4 | | match details | W15 Chiang | Hard |
| 18.04.22 | q 2 | Yuna Ohashi | Sumitra Basnyat | 6-1, 6-1 | | match details |
| 17.04.22 | q 1 | Yuna Ohashi | Mio Mushika | 7-5, 6-0 | | match details |
| 10.04.22 | q 1 | Punnin Kovapitukted | Yuna Ohashi | Yuna Ohashi - walk over | | match details | W25 Chiang | Hard |
| 05.04.22 | qual. | Lanlana Tararudee | Yuna Ohashi | 6-3, 6-2 | | match details | W25 Chiang | Hard |
| 04.04.22 | q 2 | Yuna Ohashi | Jennifer Luikham | 1-6, 7-65, 10-8 | | match details |
| 03.04.22 | q 1 | Yuna Ohashi | Vera Deepoem | 6-3, 6-3 | | match details |
| 13.12.21 | q 2 | Andre Lukosiute | Yuna Ohashi | 6-4, 6-2 | | match details | W15 Monastir | Hard |
| 05.12.21 | q 1 | Jordina Cegarra Ramirez | Yuna Ohashi | 4-6, 7-61, 10-7 | | match details | W15 Monastir | Hard |
| 29.11.21 | q 2 | Anna Brogan | Yuna Ohashi | 6-4, 6-1 | | match details | W15 Monastir | Hard |
| 28.11.21 | q 1 | Yuna Ohashi | Anna Grueterich | 6-3, 6-2 | | match details |
| 22.11.21 | q 1 | Joanna Tomera | Yuna Ohashi | 6-0, 6-4 | | match details | W15 Monastir | Hard |
| 15.11.21 | q 2 | Elena Grekul | Yuna Ohashi | Yuna Ohashi - walk over | | match details | W15 Monastir | Hard |
| 09.11.21 | qual. | Natsuho Arakawa | Yuna Ohashi | 6-71, 6-1, 10-4 | | match details | W15 Monastir | Hard |
| 08.11.21 | q 2 | Yuna Ohashi | Elena Grekul | 7-66, 7-64 | | match details |
| 01.11.21 | qual. | Astrid Lew Yan Foon | Yuna Ohashi | 6-2, 6-0 | | match details | W15 Monastir | Hard |
| 31.10.21 | q 1 | Yuna Ohashi | Emma Van Poppel | 6-4, 6-4 | | match details |
| 15.10.19 | q 1 | Yixuan Li | Yuna Ohashi | 6-1, 3-0, Yuna Ohashi - retired | | match details | W15 Hua | Hard |
| 07.10.19 | q 1 | Haine Ogata | Yuna Ohashi | 7-5, 1-0, Yuna Ohashi - retired | | match details | W15 Hua | Hard |
| 26.08.19 | q 2 | Kanako Morisaki | Yuna Ohashi | 6-0, 6-0 | | match details | W25 Nanao | Carpet |
| 14.10.18 | q 2 | Rion Itaya | Yuna Ohashi | 4-6, 6-2, 6-3 | | match details | Hamamatsu | Carpet |
| 14.10.18 | q 1 | Yuna Ohashi | Megumi Nishimoto | 6-1, 6-4 | | match details |
| 02.09.18 | q 1 | Sera Nishimoto | Yuna Ohashi | 7-61, 6-0 | | match details | Kyoto | I. hard |
| 26.08.18 | q 1 | Minami Akiyama | Yuna Ohashi | 6-3, 7-5 | | match details | Nanao | Carpet |
