Nombre: Ayumi Koshiishi
País: Japan
Fecha de nacimiento: 28.07.00, 25 años
WTA ranking: 638
TOP posición de la clasificación: 367 (21.07.25, 16500 puntos)
Puntos: 71
Dinero del premio: 94314 $
Partidos totales: 476
ganar: 296
%: 62.18 %
País: Japan
Fecha de nacimiento: 28.07.00, 25 años
WTA ranking: 638
TOP posición de la clasificación: 367 (21.07.25, 16500 puntos)
Puntos: 71
Dinero del premio: 94314 $
Partidos totales: 476
ganar: 296
%: 62.18 %
| año | resumen | Difícil | Arcilla | I. difícil | Alfombra | Césped | Acrílico |
| 2025 | 33/30 | 30/26 | 0/0 | 3/4 | 0/0 | 0/0 | 0/0 |
| 2024 | 45/31 | 34/23 | 1/1 | 9/5 | 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 | 296/180 | 223/127 | 26/15 | 24/20 | 23/18 | 0/0 | 0/0 |
| porc. % | 62.18 % | 63.71 % | 63.41 % | 54.55 % | 56.1 % | 0 % | 0 % |
Ayumi Koshiishi / programado / pasado
| No se encontraron partidos |
Ayumi Koshiishi form / año 2019
Ayumi Koshiishi / año 2019
| 16.10.19 | 1er ronda | Sakura Hosogi | Ayumi Koshiishi | 4-0, Ayumi Koshiishi - retirado |  | match details |  W15 Hua | Difícil |
| 10.10.19 | 2da ronda | Patcharin Cheapchadej | Ayumi Koshiishi | 6-1, 6-3 | | match details | W15 Hua | Difícil |
| 09.10.19 | 1er ronda | Ayumi Koshiishi | Mananchaya Sawangkaew | 6-2, 6-3 |  | match details | ||
| 05.09.19 | 2da ronda | Michika Ozeki | Ayumi Koshiishi | 6-0, 6-3 | | match details |  W25 Kyoto | I. difícil |
| 04.09.19 | 1er ronda | Ayumi Koshiishi | Miharu Imanishi | 6-3, 6-4 | | match details | ||
| 02.09.19 | calif. | Ayumi Koshiishi | Utaka Kishigami | 7-5, 7-64 | | match details | ||
| 01.09.19 | c 1 | Ayumi Koshiishi | Hx Izabella Tan | 6-0, 6-1 | | match details | ||
| 27.08.19 | 1er ronda | Anri Nagata | Ayumi Koshiishi | 6-4, 6-0 | | match details | W25 Nanao | Alfombra |
| 19.08.19 | c 1 | Yui Chikaraishi | Ayumi Koshiishi | 2-6, 6-2, 10-7 | | match details | W25 Tsukuba | Difícil |
| 30.07.19 | calif. | Yidi Yang | Ayumi Koshiishi | 6-0, 6-2 | | match details | W25 Nonthaburi | Difícil |
| 29.07.19 | c 1 | Ayumi Koshiishi | Thasaporn Naklo | 6-3, 6-4 | | match details | ||
| 23.07.19 | calif. | Michika Ozeki | Ayumi Koshiishi | 6-2, 6-4 | | match details | W25 Nonthaburi | Difícil |
| 22.07.19 | c 1 | Ayumi Koshiishi | Ho Ching Wu | 6-3, 6-2 | | match details | ||
| 20.06.19 | 2da ronda | Sunam Jeong | Ayumi Koshiishi | 6-2, 7-60 | | match details |  W15 Gimcheon | Difícil |
| 19.06.19 | 1er ronda | Ayumi Koshiishi | Honoka Kobayashi | 4-6, 6-4, 6-4 | | match details | ||
| 14.06.19 | 1/4 | Misaki Matsuda | Ayumi Koshiishi | 7-5, 6-74, 6-3 | | match details | W15 Gimcheon | Difícil |
| 13.06.19 | 2da ronda | Ayumi Koshiishi | Shou Na Mu | 7-5, 6-3 | | match details | ||
| 12.06.19 | 1er ronda | Ayumi Koshiishi | Dayeon Back | 7-5, 6-2 | | match details | ||
| 05.06.19 | calif. | Ayumi Koshiishi | So-Ra Lee | 7-5, 6-2 | | match details | W25 Daegu | Difícil |
| 04.06.19 | 1er ronda | Na-Lae Han | Ayumi Koshiishi | 6-3, 4-1, Ayumi Koshiishi - retirado | | match details | ||
| 03.06.19 | c 1 | Ayumi Koshiishi | Yeong Won Jeong | 4-1, Yeong Won Jeong - retirado | | match details | ||
| 28.05.19 | calif. | Ayumi Koshiishi | Wanning Zhu | 6-0, 6-1 | | match details |  W25 Luzhou | Difícil |
| 28.05.19 | 1er ronda | Jessica Ho | Ayumi Koshiishi | 6-3, 6-1 | | match details | ||
| 21.05.19 | calif. | Chang Liu | Ayumi Koshiishi | 6-3, 4-6, 10-8 | | match details | W25 Goyang | Difícil |
| 20.05.19 | c 1 | Ayumi Koshiishi | Hyeran Yun | 6-4, 6-3 | | match details | ||
| 14.05.19 | calif. | Dabin Oh | Ayumi Koshiishi | 3-6, 6-3, 10-5 | | match details | W25 Changwon | Difícil |
| 13.05.19 | c 1 | Ayumi Koshiishi | Si On Park | 6-0, 6-1 | | match details | ||
| 06.05.19 | c 1 | Mai Hontama | Ayumi Koshiishi | 3-6, 6-3, 10-2 | | match details | W60 Fukuoka | Alfombra |
| 08.04.19 | c 1 | Mihika Yadav | Ayumi Koshiishi | 3-6, 6-2, 10-4 | | match details |  W25 Hong | Difícil |
| 03.04.19 | 1er ronda | Ann Li | Ayumi Koshiishi | 6-1, 6-2 | | match details |  W25 Jackson | Arcilla |
| 02.04.19 | calif. | Ayumi Koshiishi | Alesya Yakubovich | 6-3, 6-2 | | match details | ||
| 24.03.19 | c 1 | Yuuki Tanaka | Ayumi Koshiishi | 6-3, 6-1 | | match details |  W25 Canberra | Arcilla |
| 22.03.19 | 1/4 | Eudice Wong Chong | Ayumi Koshiishi | 6-2, 6-3 | | match details | W15 Xiamen | Difícil |
| 21.03.19 | 2da ronda | Ayumi Koshiishi | Qianhui Tang | 7-5, 6-74, 3-0, Qianhui Tang - retirado | | match details | ||
| 20.03.19 | 1er ronda | Ayumi Koshiishi | Ashmitha Easwaramurthi | 6-0, 6-1 | | match details | ||
| 21.02.19 | 2da ronda | Anastasia Zakharova | Ayumi Koshiishi | 6-4, 6-4 | | match details |  W15 Shymkent | I. difícil |
| 20.02.19 | 1er ronda | Ayumi Koshiishi | Anastasia Astakhova | 6-2, 6-4 | | match details | ||
| 13.02.19 | 1er ronda | Sadafmoh Tolibova | Ayumi Koshiishi | 4-6, 6-1, 6-1 | | match details | W15 Shymkent | I. difícil |
| 07.02.19 | 2da ronda | Daniella Medvedeva | Ayumi Koshiishi | 6-3, 6-1 | | match details |  W15 Palmanova | Arcilla |
| 05.02.19 | 1er ronda | Ayumi Koshiishi | Isabel Adrover Gallego | 6-1, 6-2 | | match details | ||
| 31.01.19 | 2da ronda | Claudia Hoste Ferrer | Ayumi Koshiishi | 6-0, 6-2 | | match details | W15 Manacor | Arcilla |
| 29.01.19 | 1er ronda | Ayumi Koshiishi | Jazmin Ortenzi | 7-5, 4-6, 6-2 | | match details | ||
| 25.01.19 | 1/4 | Julia Payola | Ayumi Koshiishi | 6-2, 6-2 | | match details | W15 Manacor | Arcilla |
| 25.01.19 | 2da ronda | Ayumi Koshiishi | Jazmin Ortenzi | 6-2, 1-6, 6-2 | | match details | ||
| 22.01.19 | 1er ronda | Ayumi Koshiishi | Laura Svatikova | 3-6, 7-68, 6-3 | | match details |