Name: Ayumi Koshiishi
Country: Japan
Birthdate: 28.07.00, 24 years
WTA ranking: 511
TOP ranking's position: 511 (23.09.24, 10100 points)
Points: 101
Prize money: 56564 $
Matches total: 398
Win: 254
%: 63.82 %
Country: Japan
Birthdate: 28.07.00, 24 years
WTA ranking: 511
TOP ranking's position: 511 (23.09.24, 10100 points)
Points: 101
Prize money: 56564 $
Matches total: 398
Win: 254
%: 63.82 %
| year | summary | Hard | Clay | I. hard | Carpet | Grass | Acrylic |
| 2024 | 36/25 | 33/20 | 1/1 | 1/2 | 1/2 | 0/0 | 0/0 |
| 2023 | 50/20 | 49/17 | 0/0 | 0/2 | 1/1 | 0/0 | 0/0 |
| 2022 | 20/12 | 16/8 | 0/0 | 3/3 | 1/1 | 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 | 254/144 | 192/98 | 26/15 | 13/13 | 23/18 | 0/0 | 0/0 |
| perc. % | 63.82 % | 66.21 % | 63.41 % | 50 % | 56.1 % | 0 % | 0 % |
Ayumi Koshiishi / scheduled / last
| no matches found |
Ayumi Koshiishi form
Ayumi Koshiishi / last 50 matches
| 19.09.24 | 2nd round | Talia Gibson | Ayumi Koshiishi | 6-1, 3-6, 6-2 |  | match details |  W75 Perth | Hard |
| 17.09.24 | 1st round | Ayumi Koshiishi | Sakura Hosogi | 4-6, 6-2, 6-4 |  | match details | ||
| 16.09.24 | qual. | Ayumi Koshiishi | Carolann Delaunay | 6-0, 6-0 | | match details | ||
| 15.09.24 | q 1 | Ayumi Koshiishi | Madison Frahn | 6-4, 6-0 | | match details | ||
| 11.09.24 | 1st round | Aoi Ito | Ayumi Koshiishi | 7-5, 6-1 | | match details | W75 Perth | Hard |
| 09.09.24 | qual. | Ayumi Koshiishi | Viktoria Morvayova | 7-5, 6-0 | | match details | ||
| 08.09.24 | q 1 | Ayumi Koshiishi | Mahta Khanloo | 6-0, 6-3 | | match details | ||
| 06.09.24 | 1/4 | Aoi Ito | Ayumi Koshiishi | 6-1, 1-6, 6-2 | | match details |  W100 Incheon | Hard |
| 05.09.24 | 2nd round | Ayumi Koshiishi | Ayano Shimizu | 6-2, 6-1 | | match details | ||
| 04.09.24 | 1st round | Ayumi Koshiishi | Arianne Hartono | 6-2, 6-3 | | match details | ||
| 02.09.24 | qual. | Ayumi Koshiishi | Jimin Kwon | 6-3, 6-1 | | match details | ||
| 01.09.24 | q 1 | Ayumi Koshiishi | Yujin Kim | 6-0, 7-60 | | match details | ||
| 26.08.24 | qual. | Qianhui Tang | Ayumi Koshiishi | 6-3, 1-6, 7-64 | | match details |  W50 Jinan | Hard |
| 25.08.24 | q 1 | Ayumi Koshiishi | Yanni Liu | 6-4, 6-4 | | match details | ||
| 04.08.24 | fin | Anastasia Gasanova | Ayumi Koshiishi | 6-2, 6-1 | | match details |  W15 Ust | Hard |
| 03.08.24 | 1/2 | Ayumi Koshiishi | Ekaterina Ovcharenko | 2-6, 6-3, 6-0 | | match details | ||
| 02.08.24 | 1/4 | Ayumi Koshiishi | Elena Malygina | 2-6, 6-3, 6-3 | | match details | ||
| 01.08.24 | 2nd round | Ayumi Koshiishi | Aruzhan Sagandikova | 6-3, 6-0 | | match details | ||
| 30.07.24 | 1st round | Ayumi Koshiishi | Daria Zelinskaya | 7-5, 6-3 | | match details | ||
| 25.07.24 | 2nd round | Elena Malygina | Ayumi Koshiishi | 6-3, 6-1 | | match details | W35 Astana | Hard |
| 24.07.24 | 1st round | Ayumi Koshiishi | Aruzhan Sagandikova | 6-3, 6-3 | | match details | ||
| 21.07.24 | fin | Hikaru Sato | Ayumi Koshiishi | 6-4, 6-4 | | match details |  W15 Nakhon | Hard |
| 20.07.24 | 1/2 | Ayumi Koshiishi | Punnin Kovapitukted | 2-6, 6-1, 6-0 | | match details | ||
| 19.07.24 | 2nd round | Ayumi Koshiishi | Shihomi Li Xuan Leong | 6-3, 6-75, 6-3 | | match details | ||
| 19.07.24 | 1/4 | Ayumi Koshiishi | Yuno Kitahara | 6-2, 6-0 | | match details | ||
| 17.07.24 | 1st round | Ayumi Koshiishi | Humera Baharmus | 6-0, 6-3 | | match details | ||
| 12.07.24 | 1/4 | Alicia Smith | Ayumi Koshiishi | 0-6, 6-2, 6-1 | | match details | W15 Nakhon | Hard |
| 11.07.24 | 2nd round | Ayumi Koshiishi | Sonal Patil | 6-3, 6-1 | | match details | ||
| 09.07.24 | 1st round | Ayumi Koshiishi | Watsachol Sawatdee | 6-4, 6-2 | | match details | ||
| 04.07.24 | 2nd round | Eri Shimizu | Ayumi Koshiishi | 7-5, 6-3 | | match details | W35 Nakhon | Hard |
| 03.07.24 | 1st round | Ayumi Koshiishi | Sonal Patil | 6-2, 6-76, 6-3 | | match details | ||
| 05.06.24 | 1st round | Rina Saigo | Ayumi Koshiishi | 6-2, 5-7, 6-1 | | match details | W35 Daegu | Hard |
| 03.06.24 | qual. | Ayumi Koshiishi | Hwiwon Wi | 6-1, 6-1 | | match details | ||
| 02.06.24 | q 1 | Ayumi Koshiishi | Yesung Choo | 6-3, 6-0 | | match details | ||
| 26.05.24 | q 1 | Jeong Moon | Ayumi Koshiishi | 7-63, 0-6, 10-4 | | match details | W35 Changwon | Hard |
| 22.05.24 | 1st round | Zongyu Li | Ayumi Koshiishi | 6-4, 6-1 | | match details | W50 Goyang | Hard |
| 20.05.24 | qual. | Ayumi Koshiishi | Rina Saigo | 7-64, 7-5 | | match details | ||
| 19.05.24 | q 1 | Ayumi Koshiishi | Da Hye Kim | 7-5, 2-0, Da Hye Kim - retired | | match details | ||
| 13.05.24 | qual. | Miho Kuramochi | Ayumi Koshiishi | 6-3, 6-0 | | match details |  W75 Kurume | Carpet |
| 13.05.24 | q 1 | Ayumi Koshiishi | Nanari Katsumi | 6-0, 6-1 | | match details | ||
| 06.05.24 | q 1 | Lisa-Marie Rioux | Ayumi Koshiishi | 6-1, 6-3 | | match details | W75 Fukuoka | Carpet |
| 24.04.24 | 1st round | Qiang Wang | Ayumi Koshiishi | 6-2, 6-1 | | match details | W50 Wuning | Hard |
| 22.04.24 | qual. | Ayumi Koshiishi | Jiayou Li | 6-4, 6-1 | | match details | ||
| 21.04.24 | q 1 | Ayumi Koshiishi | Jiumeng Liu | 6-1, 6-0 | | match details | ||
| 14.04.24 | q 1 | Eunhye Lee | Ayumi Koshiishi | 6-3, 4-6, 6-3 | | match details | W50 Shenzhen | Hard |
| 08.04.24 | qual. | Rina Saigo | Ayumi Koshiishi | 6-3, 6-4 | | match details | W35 Osaka | Hard |
| 07.04.24 | q 1 | Ayumi Koshiishi | Suzuna Oigawa | 6-0, 4-6, 10-3 | | match details | ||
| 07.04.24 | q 2 | Ayumi Koshiishi | Mei Hasegawa | 6-3, 7-65 | | match details | ||
| 24.03.24 | q 1 | Erika Sema | Ayumi Koshiishi | 6-2, 6-0 | | match details | W50 Kofu | Hard |
| 13.03.24 | 1st round | Dalila Jakupovic | Ayumi Koshiishi | 6-3, 6-1 | | match details |  W35 Indore | Hard |