Name: Ayumi Koshiishi
Country: Japan
Birthdate: 28.07.00, 21 years
WTA ranking: 583
TOP ranking's position: 551 (30.08.21, 7400 points)
Points: 74
Prize money: 31857 $
Matches total: 237
Win: 149
%: 62.87 %
Country: Japan
Birthdate: 28.07.00, 21 years
WTA ranking: 583
TOP ranking's position: 551 (30.08.21, 7400 points)
Points: 74
Prize money: 31857 $
Matches total: 237
Win: 149
%: 62.87 %
| year | summary | Hard | Clay | I. hard | Carpet | Grass | Acrylic |
| 2022 | 1/1 | 1/1 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 |
| 2021 | 48/15 | 41/10 | 4/4 | 3/1 | 0/0 | 0/0 | 0/0 |
| 2020 | 25/9 | 9/4 | 16/5 | 0/0 | 0/0 | 0/0 | 0/0 |
| 2019 | 22/23 | 13/13 | 5/5 | 4/3 | 0/2 | 0/0 | 0/0 |
| 2018 | 30/21 | 23/18 | 0/0 | 0/0 | 7/3 | 0/0 | 0/0 |
| 2017 | 13/12 | 7/5 | 0/0 | 0/1 | 6/6 | 0/0 | 0/0 |
| 2016 | 10/7 | 1/3 | 0/0 | 2/1 | 7/3 | 0/0 | 0/0 |
| TOTAL | 149/88 | 95/54 | 25/14 | 9/6 | 20/14 | 0/0 | 0/0 |
| perc. % | 62.87 % | 63.76 % | 64.1 % | 60 % | 58.82 % | 0 % | 0 % |
Ayumi Koshiishi / scheduled / last
| no matches found |
Ayumi Koshiishi form
Ayumi Koshiishi / last 50 matches
| 17.01.22 | q 2 | Ashley Lahey | Ayumi Koshiishi | 6-3, 3-6, 10-7 |  | match details |  W25 Manacor | Hard |
| 16.01.22 | q 1 | Ayumi Koshiishi | Milan Krish | 6-1, 6-0 |  | match details | ||
| 27.11.21 | 1/2 | Ziva Falkner | Ayumi Koshiishi | 6-4, 4-6, 6-4 | | match details |  W15 Lousada | I. hard |
| 26.11.21 | 1/4 | Ayumi Koshiishi | Amandine Monnot | 6-4, 6-4 | | match details | ||
| 25.11.21 | 2nd round | Ayumi Koshiishi | Kseniya Yersh | 6-2, 6-3 | | match details | ||
| 24.11.21 | 1st round | Ayumi Koshiishi | Ines Murta | 6-3, 6-3 | | match details | ||
| 17.11.21 | 1st round | Kristina Kucova | Ayumi Koshiishi | 6-1, 6-2 | | match details | W25 Funchal | Hard |
| 15.11.21 | qual. | Ayumi Koshiishi | Yu-Chieh Hsieh | 6-3, 6-3 | | match details | ||
| 22.08.21 | fin | Ayumi Koshiishi | Ekaterina Reyngold | 6-73, 7-62, 6-1 | | match details |  W15 Monastir | Hard |
| 21.08.21 | 1/2 | Ayumi Koshiishi | Himeno Sakatsume | 6-1, 6-1 | | match details | ||
| 20.08.21 | 1/4 | Ayumi Koshiishi | Aglaya Fedorova | 6-2, 6-1 | | match details | ||
| 19.08.21 | 2nd round | Ayumi Koshiishi | Yuka Hosoki | 6-3, 6-1 | | match details | ||
| 18.08.21 | 1st round | Ayumi Koshiishi | Hina Inoue | 6-0, 6-1 | | match details | ||
| 15.08.21 | fin | Ayumi Koshiishi | Himeno Sakatsume | 6-3, 7-63 | | match details | W15 Monastir | Hard |
| 14.08.21 | 1/2 | Ayumi Koshiishi | Lauren Proctor | 6-2, 7-67 | | match details | ||
| 13.08.21 | 1/4 | Ayumi Koshiishi | Raveena Kingsley | 6-1, 6-4 | | match details | ||
| 12.08.21 | 2nd round | Ayumi Koshiishi | Ramu Ueda | 6-4, 6-1 | | match details | ||
| 11.08.21 | 1st round | Ayumi Koshiishi | Beatrice Laura Pirtac | 6-0, 6-0 | | match details | ||
| 07.08.21 | 1/2 | Akvile Parazinskaite | Ayumi Koshiishi | 6-2, 6-2 | | match details | W15 Monastir | Hard |
| 06.08.21 | 1/4 | Ayumi Koshiishi | Raveena Kingsley | 6-3, 6-3 | | match details | ||
| 05.08.21 | 2nd round | Ayumi Koshiishi | Dasha Ivanova | 6-1, 6-2 | | match details | ||
| 04.08.21 | 1st round | Ayumi Koshiishi | Chiraz Bechri | 6-3, 6-1 | | match details | ||
| 01.08.21 | fin | Ayumi Koshiishi | Eliessa Vanlangendonck | 6-1, 6-0 | | match details | W15 Monastir | Hard |
| 31.07.21 | 1/2 | Ayumi Koshiishi | Jessica Failla | 6-2, 6-3 | | match details | ||
| 30.07.21 | 1/4 | Ayumi Koshiishi | Mariana Drazic | 6-2, 6-3 | | match details | ||
| 29.07.21 | 2nd round | Ayumi Koshiishi | Olga Helmi | 6-1, 7-5 | | match details | ||
| 28.07.21 | 1st round | Ayumi Koshiishi | Lauren Proctor | 6-3, 6-2 | | match details | ||
| 25.07.21 | fin | Dalayna Hewitt | Ayumi Koshiishi | 6-4, 6-4 | | match details | W15 Monastir | Hard |
| 24.07.21 | 1/2 | Ayumi Koshiishi | Tiphanie Fiquet | 6-4, 6-3 | | match details | ||
| 23.07.21 | 1/4 | Ayumi Koshiishi | Eliessa Vanlangendonck | 6-4, 6-3 | | match details | ||
| 22.07.21 | 2nd round | Ayumi Koshiishi | Katarina Kozarov | 6-2, 6-1 | | match details | ||
| 21.07.21 | 1st round | Ayumi Koshiishi | Giorgia Pinto | 6-0, 6-0 | | match details | ||
| 17.07.21 | 1/2 | Eliessa Vanlangendonck | Ayumi Koshiishi | 6-1, 4-6, 6-2 | | match details | W15 Monastir | Hard |
| 16.07.21 | 1/4 | Ayumi Koshiishi | Chiraz Bechri | 6-2, 6-4 | | match details | ||
| 15.07.21 | 2nd round | Ayumi Koshiishi | Anastasia Nefedova | 3-6, 7-62, 6-3 | | match details | ||
| 14.07.21 | 1st round | Ayumi Koshiishi | Paris Corley | 6-2, 6-1 | | match details | ||
| 09.07.21 | 1/4 | Angelica Raggi | Ayumi Koshiishi | 6-3, 6-2 | | match details | W15 Monastir | Hard |
| 08.07.21 | 2nd round | Ayumi Koshiishi | Chiraz Bechri | 6-3, 6-2 | | match details | ||
| 06.07.21 | 1st round | Ayumi Koshiishi | Emma Davis | 7-5, 6-0 | | match details | ||
| 29.06.21 | 1st round | Elizabeth Mandlik | Ayumi Koshiishi | 1-6, 6-1, 6-4 | | match details | W15 Monastir | Hard |
| 23.05.21 | fin | Olga Helmi | Ayumi Koshiishi | 6-3, 6-2 | | match details | W15 Monastir | Hard |
| 22.05.21 | 1/2 | Ayumi Koshiishi | Sakura Hosogi | 2-6, 6-1, 6-3 | | match details | ||
| 21.05.21 | 1/4 | Ayumi Koshiishi | Angelica Raggi | 6-4, 6-2 | | match details | ||
| 20.05.21 | 2nd round | Ayumi Koshiishi | Chiara Scholl | 6-2, 6-3 | | match details | ||
| 19.05.21 | 1st round | Ayumi Koshiishi | Jasmijn Gimbrere | 6-4, 6-1 | | match details | ||
| 11.05.21 | 1st round | Erika Sema | Ayumi Koshiishi | 6-3, 7-61 | | match details | W15 Monastir | Hard |
| 07.05.21 | 1/4 | Miharu Imanishi | Ayumi Koshiishi | 4-6, 6-2, 6-4 | | match details | W15 Monastir | Hard |
| 06.05.21 | 2nd round | Ayumi Koshiishi | Gozal Ainitdinova | 6-1, 6-1 | | match details | ||
| 05.05.21 | 1st round | Ayumi Koshiishi | Irys Ekani | 6-4, 2-0, Irys Ekani - retired | | match details | ||
| 04.05.21 | qual. | Ayumi Koshiishi | Olivia Gram | 6-2, 6-1 | | match details |