Ayumi Koshiishi - profile / player stats

Ayumi Koshiishi - profile / player stats

Ayumi Koshiishi
Name: Ayumi Koshiishi
Country: Japan
Birthdate: 28.07.00, 23 years
WTA ranking: 622
TOP ranking's position: 532 (23.05.22, 8200 points)
Points: 68
Prize money: 56564 $
Matches total: 350
Win: 223
%: 63.71 %
yearsummaryHardClayI. hardCarpetGrassAcrylic
20245/83/51/11/20/00/00/0
202350/2049/170/00/21/10/00/0
202220/1216/80/03/31/10/00/0
202148/1541/104/43/10/00/00/0
202025/99/416/50/00/00/00/0
201922/2313/135/54/30/20/00/0
201830/2123/180/00/07/30/00/0
201713/127/50/00/16/60/00/0
201610/71/30/02/17/30/00/0
perc. %63.71 %66.12 %63.41 %50 %57.89 %0 %0 %
INFO: win / loss (click on selected year or surface to show only selected matches)

Ayumi Koshiishi / scheduled / last

no matches found

Ayumi Koshiishi form / surface: Hard

Ayumi Koshiishi / surface: Hard

24.03.24q 1Erika SemaAyumi Koshiishi6-2, 6-0 lostmatch detailsJapan W50 Kofu Hard
13.03.241st roundDalila JakupovicAyumi Koshiishi6-3, 6-1 lostmatch detailsIndia W35 Indore Hard
12.03.24qual.Ayumi KoshiishiMei Hasegawa6-3, 6-1 winmatch details
11.03.24q 2Ayumi KoshiishiLaalitya Kalluri6-0, 6-2 winmatch details
28.02.241st roundSahaja YamalapalliAyumi Koshiishi6-4, 6-2 lostmatch detailsIndia W35 Gurugram Hard
30.01.24qual.Amelia WaligoraAyumi Koshiishi6-4, 6-4 lostmatch detailsEgypt W35 Sharm Hard
29.01.24q 2Ayumi KoshiishiJane Dunyon6-0, 6-2 winmatch details
22.01.24q 2Saoirse BreenAyumi Koshiishi5-7, 6-3, 12-10 lostmatch detailsTunisia W35 Monastir Hard
12.12.23qual.Jenny LimAyumi Koshiishi6-2, 6-3 lostmatch detailsTunisia W25 Monastir Hard
11.12.23q 2Ayumi KoshiishiYingqun Sun6-0, 6-0 winmatch details
06.12.231st roundAndreea PrisacariuAyumi Koshiishi6-3, 6-2 lostmatch detailsTunisia W25 Monastir Hard
05.12.23qual.Ayumi KoshiishiAnnelin Bakker6-1, 4-6, 10-8 winmatch details
04.12.23q 2Ayumi KoshiishiIoana Zvonaru1-6, 6-1, 10-8 winmatch details
22.10.23finAyumi KoshiishiShrivalli Rashmikaa Bhamidipaty6-2, 6-1 winmatch detailsThailand W15 Hua Hard
21.10.231/2Ayumi KoshiishiPatcharin Cheapchadej6-3, 1-6, 6-1 winmatch details
20.10.231/4Ayumi KoshiishiSalakthip Ounmuang6-4, 6-3 winmatch details
19.10.232nd roundAyumi KoshiishiDemi Tran6-3, 6-1 winmatch details
18.10.231st roundAyumi KoshiishiPawinee Ruamrak6-2, 6-0 winmatch details
03.09.23q 1Peangtarn PlipuechAyumi Koshiishi6-4, 6-0 lostmatch detailsJapan W100 Tokyo Hard
21.08.23qual.Daria KudashovaAyumi Koshiishi6-2, 3-6, 7-5 lostmatch detailsHongkong W40 Hong Hard
20.08.23q 1Ayumi KoshiishiKanako Morisaki6-4, 6-2 winmatch details
13.08.23finAyumi KoshiishiAruzhan Sagandikova6-2, 6-2 winmatch detailsKazakhstan W15 Ust Hard
12.08.231/2Ayumi KoshiishiSonja Zhiyenbayeva6-3, 6-4 winmatch details
11.08.231/4Ayumi KoshiishiAnastasia Grechkina6-2, 1-6, 6-4 winmatch details
10.08.232nd roundAyumi KoshiishiAlisa Kummel6-4, 6-3 winmatch details
08.08.231st roundAyumi KoshiishiMaria Kalyakina7-65, 7-5 winmatch details
03.08.232nd roundAnastasia ZakharovaAyumi Koshiishi6-4, 6-75, 6-2 lostmatch detailsKazakhstan W25 Astana Hard
02.08.231st roundAyumi KoshiishiDarya Shauha7-66, 3-6, 6-2 winmatch details
23.07.23finAyumi KoshiishiSofia Camila Rojas6-4, 6-2 winmatch detailsTunisia W15 Monastir Hard
22.07.231/2Ayumi KoshiishiKatarina Kuzmova4-1, Katarina Kuzmova - retiredwinmatch details
21.07.231/4Ayumi KoshiishiSophia Biolay6-2, 6-2 winmatch details
20.07.232nd roundAyumi KoshiishiHelena Buchwald6-3, 2-0, Helena Buchwald - retiredwinmatch details
18.07.231st roundAyumi KoshiishiElizaveta Shebekina6-1, 6-2 winmatch details
16.07.23finAyumi KoshiishiCamilla Zanolini6-0, Camilla Zanolini - retiredwinmatch detailsTunisia W15 Monastir Hard
15.07.231/2Ayumi KoshiishiLara Pfeifer6-1, 6-4 winmatch details
14.07.231/4Ayumi KoshiishiKarine Marion Job6-1, 6-2 winmatch details
13.07.232nd roundAyumi KoshiishiRaquel Gonzalez Vilar6-0, 6-0 winmatch details
11.07.231st roundAyumi KoshiishiMargherita Marcon6-0, 6-4 winmatch details
07.07.231/4Camilla ZanoliniAyumi Koshiishi6-3, 6-1 lostmatch detailsTunisia W15 Monastir Hard
06.07.232nd roundAyumi KoshiishiJune Bjork6-2, 6-3 winmatch details
05.07.231st roundAyumi KoshiishiCristina Elena Tiglea6-2, 6-4 winmatch details
27.06.231st roundAnja WildgruberAyumi Koshiishi1-6, 2-1, Ayumi Koshiishi - retiredlostmatch detailsTunisia W15 Monastir Hard
17.06.231/2Natsuki YoshimotoAyumi Koshiishi6-0, 6-0 lostmatch detailsJapan W15 Kawaguchi Hard
16.06.232nd roundAyumi KoshiishiRio Tsuda6-4, 6-1 winmatch details
16.06.231/4Ayumi KoshiishiYuika Ikawa6-3, 4-6, 6-1 winmatch details
14.06.231st roundAyumi KoshiishiKisa Yoshioka7-68, 6-3 winmatch details
31.05.231st roundYukina SaigoAyumi Koshiishi6-4, 6-1 lostmatch detailsJapan W25 Tokyo Hard
22.05.23qual.Yi Tsen ChoAyumi Koshiishi6-2, 6-0 lostmatch detailsRepublic of Korea W25 Goyang Hard
21.05.23q 1Ayumi KoshiishiEunji Lee (2001)6-3, 6-3 winmatch details
15.05.23qual.Yujin AhnAyumi Koshiishi6-4, 6-3 lostmatch detailsRepublic of Korea W25 Incheon Hard
15.05.23q 2Ayumi KoshiishiQianhui Tang5-7, 6-3, 10-4 winmatch details
10.04.23q 2Ramu UedaAyumi Koshiishi6-3, Ayumi Koshiishi - retiredlostmatch detailsJapan W25 Osaka Hard
09.04.23q 1Ayumi KoshiishiKurea Hayasaka7-63, 6-4 winmatch details
03.04.23qual.Katarina KozarovAyumi Koshiishi6-0, 6-3 lostmatch detailsJapan W25 Kashiwa Hard
02.04.23q 1Ayumi KoshiishiAoi Hirata6-3, 6-4 winmatch details
29.03.231st roundEri HozumiAyumi Koshiishi6-4, 6-2 lostmatch detailsJapan W25 Kofu Hard
26.03.231/2Natsumi KawaguchiAyumi Koshiishi6-1, 6-2 lostmatch detailsJapan W15 Hinode Hard
24.03.231/4Ayumi KoshiishiYuka Hosoki5-7, 6-2, 6-0 winmatch details
23.03.232nd roundAyumi KoshiishiChisa Hosonuma6-2, 6-1 winmatch details
22.03.231st roundAyumi KoshiishiMomoko Nishio6-4, 7-63 winmatch details
05.03.23finAyumi KoshiishiHanyu Guo5-7, 6-2, 6-1 winmatch detailsMalaysia W15 Kuching Hard
04.03.231/2Ayumi KoshiishiShuo Feng6-0, 6-1 winmatch details
03.03.231/4Ayumi KoshiishiAoi Ito6-1, 7-64 winmatch details
02.03.232nd roundAyumi KoshiishiKisa Yoshioka6-3, 6-2 winmatch details
01.03.231st roundAyumi KoshiishiJo-Leen Saw6-2, 6-0 winmatch details
26.02.23finHanyu GuoAyumi Koshiishi6-4, 6-3 lostmatch detailsMalaysia W15 Kuala Hard
25.02.231/2Ayumi KoshiishiAunchisa Chanta6-4, 7-5 winmatch details
24.02.231/4Ayumi KoshiishiRiko Sawayanagi6-3, 7-61 winmatch details
23.02.232nd roundAyumi KoshiishiMeiqi Guo6-3, 6-1 winmatch details
21.02.231st roundAyumi KoshiishiYi Tsen Cho0-6, 7-65, 1-0, Yi Tsen Cho - retiredwinmatch details
18.02.231/2Lanlana TararudeeAyumi Koshiishi6-4, 7-5 lostmatch detailsMalaysia W15 Ipoh Hard
17.02.231/4Ayumi KoshiishiDabin Kim6-2, 7-5 winmatch details
16.02.232nd roundAyumi KoshiishiSara Nayar6-4, 6-3 winmatch details
15.02.231st roundAyumi KoshiishiShanelle Iaconi6-2, 6-2 winmatch details
21.05.221/2Ayumi MoritaAyumi Koshiishi6-3, 6-3 lostmatch detailsTunisia W15 Monastir Hard
20.05.221/4Ayumi KoshiishiAnja Wildgruber6-3, 6-2 winmatch details
19.05.222nd roundAyumi KoshiishiSijia Wei6-4, 6-1 winmatch details
18.05.221st roundAyumi KoshiishiYu Shan6-2, 6-4 winmatch details
15.05.22finFangzhou LiuAyumi Koshiishi6-4, 7-5 lostmatch detailsTunisia W15 Monastir Hard
14.05.221/2Ayumi KoshiishiAleksandra Pospelova6-1, 6-4 winmatch details
12.05.222nd roundAyumi KoshiishiMilana Zhabrailova6-2, 3-6, 6-1 winmatch details
12.05.221/4Ayumi KoshiishiChiraz Bechri Chiraz Bechri - walk over winmatch details
11.05.221st roundAyumi KoshiishiNiditra Rajmohan2-0, Niditra Rajmohan - retiredwinmatch details
06.05.221/4Adithya KarunaratneAyumi Koshiishi2-6, 6-0, 6-1 lostmatch detailsTunisia W25 Monastir Hard
05.05.222nd roundAyumi KoshiishiJia-Jing Lu7-64, 3-6, 6-3 winmatch details
04.05.221st roundAyumi KoshiishiEmilie Lindh Gallagher5-7, 6-3, 6-1 winmatch details
27.04.221st roundMeiling WangAyumi Koshiishi7-65, 6-0 lostmatch detailsTunisia W25 Monastir Hard
26.04.22qual.Ayumi KoshiishiYasmine Mansouri6-2, 6-3 winmatch details
25.04.22q 2Ayumi KoshiishiSahaja Yamalapalli6-4, 6-1 winmatch details
20.04.221st roundVitalia DiatchenkoAyumi Koshiishi6-75, 6-3, 6-2 lostmatch detailsTunisia W25 Monastir Hard
19.04.22qual.Ayumi KoshiishiXinxin Yao6-4, 6-2 winmatch details
18.04.22q 2Ayumi KoshiishiMaria Navarro Oliva7-63, 7-62 winmatch details
17.04.22q 1Ayumi KoshiishiAshmitha Easwaramurthi6-1, 6-2 winmatch details
23.02.221st roundMirra AndreevaAyumi Koshiishi7-60, 3-6, 7-62 lostmatch detailsEgypt W15 Sharm Hard
24.01.22q 2Anna TuratiAyumi Koshiishi7-64, 6-4 lostmatch detailsSpain W25 Manacor Hard
23.01.22q 1Ayumi KoshiishiCristina Diaz Adrover6-1, 6-1 winmatch details
17.01.22q 2Ashley LaheyAyumi Koshiishi6-3, 3-6, 10-7 lostmatch detailsSpain W25 Manacor Hard
16.01.22q 1Ayumi KoshiishiMilan Krish6-1, 6-0 winmatch details
17.11.211st roundKristina KucovaAyumi Koshiishi6-1, 6-2 lostmatch detailsPortugal W25 Funchal Hard
15.11.21qual.Ayumi KoshiishiYu-Chieh Hsieh6-3, 6-3 winmatch details
22.08.21finAyumi KoshiishiEkaterina Reyngold6-73, 7-62, 6-1 winmatch detailsTunisia W15 Monastir Hard
21.08.211/2Ayumi KoshiishiHimeno Sakatsume6-1, 6-1 winmatch details
20.08.211/4Ayumi KoshiishiAglaya Fedorova6-2, 6-1 winmatch details
19.08.212nd roundAyumi KoshiishiYuka Hosoki6-3, 6-1 winmatch details
18.08.211st roundAyumi KoshiishiHina Inoue6-0, 6-1 winmatch details
15.08.21finAyumi KoshiishiHimeno Sakatsume6-3, 7-63 winmatch detailsTunisia W15 Monastir Hard
14.08.211/2Ayumi KoshiishiLauren Proctor6-2, 7-67 winmatch details
13.08.211/4Ayumi KoshiishiRaveena Kingsley6-1, 6-4 winmatch details
12.08.212nd roundAyumi KoshiishiRamu Ueda6-4, 6-1 winmatch details
11.08.211st roundAyumi KoshiishiBeatrice Laura Pirtac6-0, 6-0 winmatch details
07.08.211/2Akvile ParazinskaiteAyumi Koshiishi6-2, 6-2 lostmatch detailsTunisia W15 Monastir Hard
06.08.211/4Ayumi KoshiishiRaveena Kingsley6-3, 6-3 winmatch details
05.08.212nd roundAyumi KoshiishiDasha Ivanova6-1, 6-2 winmatch details
04.08.211st roundAyumi KoshiishiChiraz Bechri6-3, 6-1 winmatch details
01.08.21finAyumi KoshiishiEliessa Vanlangendonck6-1, 6-0 winmatch detailsTunisia W15 Monastir Hard
31.07.211/2Ayumi KoshiishiJessica Failla6-2, 6-3 winmatch details
30.07.211/4Ayumi KoshiishiMariana Drazic6-2, 6-3 winmatch details
29.07.212nd roundAyumi KoshiishiOlga Helmi6-1, 7-5 winmatch details
28.07.211st roundAyumi KoshiishiLauren Proctor6-3, 6-2 winmatch details
25.07.21finDalayna HewittAyumi Koshiishi6-4, 6-4 lostmatch detailsTunisia W15 Monastir Hard
24.07.211/2Ayumi KoshiishiTiphanie Lemaitre6-4, 6-3 winmatch details
23.07.211/4Ayumi KoshiishiEliessa Vanlangendonck6-4, 6-3 winmatch details
22.07.212nd roundAyumi KoshiishiKatarina Kozarov6-2, 6-1 winmatch details
21.07.211st roundAyumi KoshiishiGiorgia Pinto6-0, 6-0 winmatch details
17.07.211/2Eliessa VanlangendonckAyumi Koshiishi6-1, 4-6, 6-2 lostmatch detailsTunisia W15 Monastir Hard
16.07.211/4Ayumi KoshiishiChiraz Bechri6-2, 6-4 winmatch details
15.07.212nd roundAyumi KoshiishiAnastasia Nefedova3-6, 7-62, 6-3 winmatch details
14.07.211st roundAyumi KoshiishiParis Corley6-2, 6-1 winmatch details
09.07.211/4Angelica RaggiAyumi Koshiishi6-3, 6-2 lostmatch detailsTunisia W15 Monastir Hard
08.07.212nd roundAyumi KoshiishiChiraz Bechri6-3, 6-2 winmatch details
06.07.211st roundAyumi KoshiishiEmma Davis7-5, 6-0 winmatch details
29.06.211st roundElizabeth MandlikAyumi Koshiishi1-6, 6-1, 6-4 lostmatch detailsTunisia W15 Monastir Hard
23.05.21finOlga HelmiAyumi Koshiishi6-3, 6-2 lostmatch detailsTunisia W15 Monastir Hard
22.05.211/2Ayumi KoshiishiSakura Hosogi2-6, 6-1, 6-3 winmatch details
21.05.211/4Ayumi KoshiishiAngelica Raggi6-4, 6-2 winmatch details
20.05.212nd roundAyumi KoshiishiChiara Scholl6-2, 6-3 winmatch details
19.05.211st roundAyumi KoshiishiJasmijn Gimbrere6-4, 6-1 winmatch details
11.05.211st roundErika SemaAyumi Koshiishi6-3, 7-61 lostmatch detailsTunisia W15 Monastir Hard
07.05.211/4Miharu ImanishiAyumi Koshiishi4-6, 6-2, 6-4 lostmatch detailsTunisia W15 Monastir Hard
06.05.212nd roundAyumi KoshiishiGozal Ainitdinova6-1, 6-1 winmatch details
05.05.211st roundAyumi KoshiishiIrys Ekani6-4, 2-0, Irys Ekani - retiredwinmatch details
04.05.21qual.Ayumi KoshiishiOlivia Gram6-2, 6-1 winmatch details
03.05.21q 1Ayumi KoshiishiGiulia Sartori6-3, 6-1 winmatch details
03.05.21q 2Ayumi KoshiishiTara Malik6-3, 6-4 winmatch details
29.04.212nd roundMiharu ImanishiAyumi Koshiishi5-7, 6-3, 7-63 lostmatch detailsTunisia W15 Monastir Hard
28.04.211st roundAyumi KoshiishiSara Akid6-0, 6-1 winmatch details
27.04.21qual.Ayumi KoshiishiOlga Helmi4-6, 7-66, 10-6 winmatch details
26.04.21q 2Ayumi KoshiishiLaura Mair4-6, 6-1, 10-4 winmatch details
26.04.21q 1Ayumi KoshiishiGiulia Carbonaro6-4, 5-7, 10-2 winmatch details
23.02.20q 1Alana ParnabyAyumi Koshiishi2-6, 6-4, 17-15 lostmatch detailsAustralia W25 Perth Hard
18.02.20qual.Alicia SmithAyumi Koshiishi7-5, 7-62 lostmatch detailsAustralia W25 Perth Hard
17.02.20q 2Ayumi KoshiishiLara Tovich6-0, 6-0 winmatch details
16.02.20q 1Ayumi KoshiishiLuna Jokanovic6-1, 6-4 winmatch details
30.01.202nd roundMargot YerolymosAyumi Koshiishi6-2, 6-3 lostmatch detailsSpain W15 Manacor Hard
29.01.201st roundAyumi KoshiishiFiona Ganz6-1, 6-4 winmatch details
28.01.20qual.Ayumi KoshiishiEun Ji Lee6-0, 6-1 winmatch details
27.01.20q 2Ayumi KoshiishiJerricka Boone6-4, 6-4 winmatch details
26.01.20q 1Ayumi KoshiishiNina Ugrelidze6-1, 6-2 winmatch details
23.01.20q 2Ayumi KoshiishiHaine Ogata6-1, 6-3 winmatch detailsSpain W15 Manacor Hard
23.01.20qual.Ayumi KoshiishiKathleen Kanev6-4, 6-1 winmatch details
23.01.201st roundCelia Cervino RuizAyumi Koshiishi6-0, 7-65 lostmatch details
22.01.20q 1Ayumi KoshiishiJillian Louise Roa6-2, 6-1 winmatch details
16.10.191st roundSakura HosogiAyumi Koshiishi4-0, Ayumi Koshiishi - retiredlostmatch detailsThailand W15 Hua Hard
10.10.192nd roundPatcharin CheapchadejAyumi Koshiishi6-1, 6-3 lostmatch detailsThailand W15 Hua Hard
09.10.191st roundAyumi KoshiishiMananchaya Sawangkaew6-2, 6-3 winmatch details
19.08.19q 1Yui ChikaraishiAyumi Koshiishi2-6, 6-2, 10-7 lostmatch detailsJapan W25 Tsukuba Hard
30.07.19qual.Yidi YangAyumi Koshiishi6-0, 6-2 lostmatch detailsThailand W25 Nonthaburi Hard
29.07.19q 1Ayumi KoshiishiThasaporn Naklo6-3, 6-4 winmatch details
23.07.19qual.Michika OzekiAyumi Koshiishi6-2, 6-4 lostmatch detailsThailand W25 Nonthaburi Hard
22.07.19q 1Ayumi KoshiishiHo Ching Wu6-3, 6-2 winmatch details
20.06.192nd roundSunam JeongAyumi Koshiishi6-2, 7-60 lostmatch detailsRepublic of Korea W15 Gimcheon Hard
19.06.191st roundAyumi KoshiishiHonoka Kobayashi4-6, 6-4, 6-4 winmatch details
14.06.191/4Misaki MatsudaAyumi Koshiishi7-5, 6-74, 6-3 lostmatch detailsRepublic of Korea W15 Gimcheon Hard
13.06.192nd roundAyumi KoshiishiShou Na Mu7-5, 6-3 winmatch details
12.06.191st roundAyumi KoshiishiDayeon Back7-5, 6-2 winmatch details
05.06.19qual.Ayumi KoshiishiSo-Ra Lee7-5, 6-2 winmatch detailsRepublic of Korea W25 Daegu Hard
04.06.191st roundNa-Lae HanAyumi Koshiishi6-3, 4-1, Ayumi Koshiishi - retiredlostmatch details
03.06.19q 1Ayumi KoshiishiYeong Won Jeong4-1, Yeong Won Jeong - retiredwinmatch details
28.05.19qual.Ayumi KoshiishiWanning Zhu6-0, 6-1 winmatch detailsChina W25 Luzhou Hard
28.05.191st roundJessica HoAyumi Koshiishi6-3, 6-1 lostmatch details
21.05.19qual.Chang LiuAyumi Koshiishi6-3, 4-6, 10-8 lostmatch detailsRepublic of Korea W25 Goyang Hard
20.05.19q 1Ayumi KoshiishiHyeran Yun6-4, 6-3 winmatch details
14.05.19qual.Dabin OhAyumi Koshiishi3-6, 6-3, 10-5 lostmatch detailsRepublic of Korea W25 Changwon Hard
13.05.19q 1Ayumi KoshiishiSi On Park6-0, 6-1 winmatch details
08.04.19q 1Mihika YadavAyumi Koshiishi3-6, 6-2, 10-4 lostmatch detailsHongkong W25 Hong Hard
22.03.191/4Eudice Wong ChongAyumi Koshiishi6-2, 6-3 lostmatch detailsChina W15 Xiamen Hard
21.03.192nd roundAyumi KoshiishiQianhui Tang7-5, 6-74, 3-0, Qianhui Tang - retiredwinmatch details
20.03.191st roundAyumi KoshiishiAshmitha Easwaramurthi6-0, 6-1 winmatch details
28.10.18q 1Masa JovanovicAyumi Koshiishi7-5, 4-6, 6-4 lostmatch detailsAustralia Canberra Hard
21.10.18q 1Marianna ZakarlyukAyumi Koshiishi4-6, 6-0, 7-65 lostmatch detailsAustralia Bendigo Hard
20.08.18qual.Nagi HanataniAyumi Koshiishi6-2, 7-60 lostmatch detailsJapan Tsukuba Hard
19.08.18q 1Ayumi KoshiishiAnge Oby Kajuru6-1, 6-4 winmatch details
11.08.18q 1Punnin KovapituktedAyumi Koshiishi6-2, 6-2 lostmatch detailsThailand Nonthaburi Hard
06.08.181st roundLou BrouleauAyumi Koshiishi6-1, 6-3 lostmatch detailsThailand Nonthaburi Hard
05.08.18qual.Ayumi KoshiishiMichika Ozeki6-70, 7-5, 6-3 winmatch details
04.08.18q 1Ayumi KoshiishiJia Qi Ren6-1, 1-6, 6-2 winmatch details
26.07.182nd roundHua-Chen LeeAyumi Koshiishi6-3, 6-0 lostmatch detailsTaipei (CHN) Taipei Hard
24.07.181st roundAyumi KoshiishiTing-Pei Chang6-2, 6-1 winmatch details
13.07.181/2Sakura HosogiAyumi Koshiishi3-6, 6-4, 6-3 lostmatch detailsHongkong Hong Kong Hard
12.07.181/4Ayumi KoshiishiZeel Desai7-5, 6-1 winmatch details
11.07.182nd roundAyumi KoshiishiPrerna Bhambri6-2, 6-2 winmatch details
10.07.181st roundAyumi KoshiishiHaine Ogata6-1, 6-4 winmatch details
10.06.18qual.Deria Nur HalizaAyumi Koshiishi1-6, 6-4, 6-3 lostmatch detailsSingapore Singapore Hard
09.06.18q 1Ayumi KoshiishiGreeshma Sai Vignatha Kamisetty6-0, 6-0 winmatch details
04.06.181st roundHiroko KuwataAyumi Koshiishi7-63, 6-710, 6-4 lostmatch detailsSingapore Singapore Hard
03.06.18qual.Ayumi KoshiishiKhee Yen Wee6-3, 6-1 winmatch details
02.06.18q 1Ayumi KoshiishiSarah Pang6-0, 6-0 winmatch details
24.05.182nd roundYa-Hsuan LeeAyumi Koshiishi6-4, 6-3 lostmatch detailsRepublic of Korea Changwon Hard
23.05.181st roundAyumi KoshiishiDabin Kim6-1, 6-3 winmatch details
22.05.18qual.Ayumi KoshiishiChang Liu6-1, 6-3 winmatch details
21.05.18q 2Ayumi KoshiishiJeong Moon6-3, 6-2 winmatch details
20.05.18q 1Ayumi KoshiishiHyojin Kong6-3, 6-3 winmatch details
16.05.181st roundNa-Lae HanAyumi Koshiishi6-1, 6-73, 6-2 lostmatch detailsRepublic of Korea Incheon Hard
15.05.18qual.Ayumi KoshiishiEunhye Lee6-3, 3-6, 6-1 winmatch details
14.05.18q 2Ayumi KoshiishiSeo-Kyung Kang6-0, 6-2 winmatch details
13.05.18q 1Ayumi KoshiishiFreya Christie6-4, 6-2 winmatch details
09.05.181st roundSo-Ra LeeAyumi Koshiishi7-62, 6-3 lostmatch detailsRepublic of Korea Goyang Hard
08.05.18qual.Ayumi KoshiishiYexin Ma6-4, 6-3 winmatch details
07.05.18q 2Ayumi KoshiishiJin Yoo6-3, 6-3 winmatch details
29.04.18q 2Tammi PattersonAyumi Koshiishi6-3, 3-0, Ayumi Koshiishi - retiredlostmatch detailsJapan Gifu Hard
29.04.18q 1Ayumi KoshiishiYuka Asano6-3, 6-1 winmatch details
07.04.18q 1Akiko OmaeAyumi Koshiishi6-3, 6-2 lostmatch detailsJapan Osaka Hard
25.03.18q 2Ksenia LykinaAyumi Koshiishi7-5, 6-75, 6-3 lostmatch detailsJapan Kofu Hard
24.03.18q 1Ayumi KoshiishiHaruna Arakawa7-5, 6-4 winmatch details
17.03.18q 1Kei KatoAyumi Koshiishi7-5, 6-4 lostmatch detailsJapan Nishi Tama Hard
10.03.18q 1Ji-Hee ChoiAyumi Koshiishi4-6, 6-3, 6-2 lostmatch detailsJapan Toyota Hard
01.01.181st roundRisa UshijimaAyumi Koshiishi6-1, 3-6, 7-5 lostmatch detailsHongkong Hong Kong Hard
31.12.17qual.Ayumi KoshiishiPinyi Zuo6-1, 6-0 winmatch details
30.12.17q 1Ayumi KoshiishiAshmitha Easwaramurthi6-0, 6-2 winmatch details
27.12.172nd roundLing ZhangAyumi Koshiishi6-4, 6-3 lostmatch detailsHongkong Hong Kong Hard
25.12.171st roundAyumi KoshiishiYuqi Sheng7-68, 6-2 winmatch details
24.12.17qual.Ayumi KoshiishiDariya Detkovskaya7-5, 6-2 winmatch details
23.12.17q 1Ayumi KoshiishiAngela Wingshan Sou6-0, 6-0 winmatch details
06.11.17q 2Naomi CheongAyumi Koshiishi7-65, 6-1 lostmatch detailsJapan Tokyo Hard
06.11.17q 1Ayumi KoshiishiMitsumi Kawasaki6-4, 5-7, 6-4 winmatch details
21.08.17q 1Aiko YoshitomiAyumi Koshiishi7-5, 4-6, 6-3 lostmatch detailsJapan Tsukuba Hard
22.03.171st roundRisa UshijimaAyumi Koshiishi6-1, 6-1 lostmatch detailsJapan Nishi Tama Hard
20.03.17qual.Ayumi KoshiishiEri Shimizu6-3, 7-5 winmatch details
20.03.17q 1Ayumi KoshiishiNina Stadler0-6, 7-66, 6-3 winmatch details
20.03.17q 2Ayumi KoshiishiRobu Kajitani1-6, 6-0, 6-3 winmatch details
06.03.17q 1Haruka KajiAyumi Koshiishi4-6, 6-1, 6-4 lostmatch detailsJapan Yokohama Hard
26.09.16qual.Akari InoueAyumi Koshiishi7-64, 7-5 lostmatch detailsJapan Iizuka Hard
26.09.16q 1Ayumi KoshiishiMegumi Nishimoto6-3, 6-4 winmatch details
22.08.16q 1Nudnida LuangnamAyumi Koshiishi6-2, 6-1 lostmatch detailsJapan Tsukuba Hard
21.03.16q 1Ayumi MoriAyumi Koshiishi2-6, 7-66, 6-0 lostmatch detailsJapan Nishi Tama Hard
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