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Bookmaker12
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Player data
![Koshiishi, Ayumi](https://theplayer.com/graphics/flags/24/JP.png)
![Back, Dayeon](https://theplayer.com/graphics/flags/24/KR.png)
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23Age22
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JapanNationalityRepublic of Korea
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-Turned pro-
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RightHandedness-
Statistics
![Koshiishi, Ayumi](https://theplayer.com/graphics/flags/24/JP.png)
![Back, Dayeon](https://theplayer.com/graphics/flags/24/KR.png)
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On hardcourt outdoorTotalTotalOn hardcourt outdoor
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203292Matches10595
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114161Wins5249
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89131Losses5346
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On hardcourt outdoorPast yearPast yearOn hardcourt outdoor
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00Matches00
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00Wins00
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00Losses00
Over / under 2.5 sets
![Koshiishi, Ayumi](https://theplayer.com/graphics/flags/24/JP.png)
![Back, Dayeon](https://theplayer.com/graphics/flags/24/KR.png)
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Under UOver OUnder UOver O
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77% 218 / 28323% 65 / 283Everything72% 74 / 10328% 29 / 103
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78% 155 / 20023% 45 / 200Hardcourt outdoor72% 67 / 9328% 26 / 93
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0% 0 / 00% 0 / 0365 days0% 0 / 00% 0 / 0
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0% 0 / 00% 0 / 0... on hardcourt outdoor0% 0 / 00% 0 / 0
Over / under games
![Koshiishi, Ayumi](https://theplayer.com/graphics/flags/24/JP.png)
![Back, Dayeon](https://theplayer.com/graphics/flags/24/KR.png)
All time - all surfaces
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Under UOver OGamesUnder UOver O
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55% 156 / 28345% 127 / 28318.555% 57 / 10345% 46 / 103
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63% 177 / 28337% 106 / 28319.557% 59 / 10343% 44 / 103
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67% 191 / 28333% 92 / 28320.562% 64 / 10338% 39 / 103
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71% 200 / 28329% 83 / 28321.565% 67 / 10335% 36 / 103
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75% 212 / 28325% 71 / 28322.567% 69 / 10333% 34 / 103
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77% 217 / 28323% 66 / 28323.570% 72 / 10330% 31 / 103
All time - hardcourt outdoor
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Under UOver OGamesUnder UOver O
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54% 107 / 20047% 93 / 20018.555% 51 / 9345% 42 / 93
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62% 124 / 20038% 76 / 20019.557% 53 / 9343% 40 / 93
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67% 133 / 20034% 67 / 20020.561% 57 / 9339% 36 / 93
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70% 139 / 20031% 61 / 20021.565% 60 / 9335% 33 / 93
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76% 151 / 20025% 49 / 20022.567% 62 / 9333% 31 / 93
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77% 154 / 20023% 46 / 20023.570% 65 / 9330% 28 / 93
Last year - all surfaces
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Under UOver OGamesUnder UOver O
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0% 0 / 00% 0 / 018.50% 0 / 00% 0 / 0
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0% 0 / 00% 0 / 019.50% 0 / 00% 0 / 0
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0% 0 / 00% 0 / 020.50% 0 / 00% 0 / 0
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0% 0 / 00% 0 / 021.50% 0 / 00% 0 / 0
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0% 0 / 00% 0 / 022.50% 0 / 00% 0 / 0
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0% 0 / 00% 0 / 023.50% 0 / 00% 0 / 0
Last year - hardcourt outdoor
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Under UOver OGamesUnder UOver O
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0% 0 / 00% 0 / 018.50% 0 / 00% 0 / 0
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0% 0 / 00% 0 / 019.50% 0 / 00% 0 / 0
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0% 0 / 00% 0 / 020.50% 0 / 00% 0 / 0
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0% 0 / 00% 0 / 021.50% 0 / 00% 0 / 0
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0% 0 / 00% 0 / 022.50% 0 / 00% 0 / 0
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0% 0 / 00% 0 / 023.50% 0 / 00% 0 / 0
Latest matches
![Koshiishi, Ayumi](https://theplayer.com/graphics/flags/24/JP.png)
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KOSKoshiishi, Ayumi0-2AHNAhn, Yujin
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KOSKoshiishi, Ayumi2-1TANTang, Qianhui
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UEDUeda, RamuRet.KOSKoshiishi, Ayumi
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HAYHayasaka, Kurea0-2KOSKoshiishi, Ayumi
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KOZKozarov, Katarina2-0KOSKoshiishi, Ayumi
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HIRHirata, Aoi0-2KOSKoshiishi, Ayumi
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KOSKoshiishi, Ayumi0-2HOZHozumi, Eri
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KAWKawaguchi, Natsumi2-0KOSKoshiishi, Ayumi
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HOSHosoki, Yuka1-2KOSKoshiishi, Ayumi
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HOSHosonuma, Chisa0-2KOSKoshiishi, Ayumi
![Back, Dayeon](https://theplayer.com/graphics/flags/24/KR.png)
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AIKAikawa, Mayuka0-2BACBack, Dayeon
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BACBack, Dayeon2-1TARTararudee, Lanlana
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BACBack, Dayeon2-0IMIm, Heerae
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BACBack, Dayeon2-0SIMSim, Mi Seong
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BACBack, Dayeon2-0YULYuldasheva, Sevil
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BACBack, Dayeon1-2KUZKuzmova, Katarina
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REFRefaat, Merna0-2BACBack, Dayeon
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SORSoriano Santiago, Marta0-2BACBack, Dayeon
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LEELee, EunhyeRet.BACBack, Dayeon
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IBRIbragimova, Alevtina2-1BACBack, Dayeon
Latest matches on hardcourt outdoor
![Koshiishi, Ayumi](https://theplayer.com/graphics/flags/24/JP.png)
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KOSKoshiishi, Ayumi0-2AHNAhn, Yujin
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KOSKoshiishi, Ayumi2-1TANTang, Qianhui
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UEDUeda, RamuRet.KOSKoshiishi, Ayumi
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HAYHayasaka, Kurea0-2KOSKoshiishi, Ayumi
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KOZKozarov, Katarina2-0KOSKoshiishi, Ayumi
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HIRHirata, Aoi0-2KOSKoshiishi, Ayumi
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KOSKoshiishi, Ayumi0-2HOZHozumi, Eri
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KAWKawaguchi, Natsumi2-0KOSKoshiishi, Ayumi
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HOSHosoki, Yuka1-2KOSKoshiishi, Ayumi
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HOSHosonuma, Chisa0-2KOSKoshiishi, Ayumi
![Back, Dayeon](https://theplayer.com/graphics/flags/24/KR.png)
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AIKAikawa, Mayuka0-2BACBack, Dayeon
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BACBack, Dayeon2-1TARTararudee, Lanlana
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BACBack, Dayeon2-0IMIm, Heerae
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BACBack, Dayeon2-0SIMSim, Mi Seong
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BACBack, Dayeon1-2KUZKuzmova, Katarina
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REFRefaat, Merna0-2BACBack, Dayeon
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SORSoriano Santiago, Marta0-2BACBack, Dayeon
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LEELee, EunhyeRet.BACBack, Dayeon
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IBRIbragimova, Alevtina2-1BACBack, Dayeon
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BACBack, Dayeon1-2BUBBubelyte, Klaudija
Mutual matches
Mutual stats
![Koshiishi, Ayumi](https://theplayer.com/graphics/flags/24/JP.png)
![Back, Dayeon](https://theplayer.com/graphics/flags/24/KR.png)
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1Wins0
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1Wins on surface0
![Mishina, Daria](https://theplayer.com/graphics/flags/24/RU.png)
![Kim, Eunseo](https://theplayer.com/graphics/flags/24/KR.png)
![Koike, Satsuki](https://theplayer.com/graphics/flags/24/JP.png)
![Yea, Hyojung](https://theplayer.com/graphics/flags/24/KR.png)
![Hosogi, Sakura](https://theplayer.com/graphics/flags/24/JP.png)
![Ahn, Yujin](https://theplayer.com/graphics/flags/24/KR.png)
![ETO, Naoko](https://theplayer.com/graphics/flags/24/JP.png)
![Fukuda, Shiori](https://theplayer.com/graphics/flags/24/JP.png)
![Koshiishi, Ayumi](https://theplayer.com/graphics/flags/24/JP.png)
![Back, Dayeon](https://theplayer.com/graphics/flags/24/KR.png)
![Mu, Shou Na](https://theplayer.com/graphics/flags/24/CN.png)
![Ng, Man Ying Maggie](https://theplayer.com/graphics/flags/24/HK.png)
![Ni Ma, Zhuoma](https://theplayer.com/graphics/flags/24/CN.png)
![Matsuda, Misaki](https://theplayer.com/graphics/flags/24/JP.png)
![Kulambayeva, Zhibek](https://theplayer.com/graphics/flags/24/KZ.png)
![Morisaki, Kanako](https://theplayer.com/graphics/flags/24/JP.png)
![Okuno, Ayaka](https://theplayer.com/graphics/flags/24/JP.png)
![Jeong, Boyoung](https://theplayer.com/graphics/flags/24/KR.png)
![Park, Subin](https://theplayer.com/graphics/flags/24/KR.png)
![Kim, Da Ye](https://theplayer.com/graphics/flags/24/KR.png)
![Jeong, Yeong Won](https://theplayer.com/graphics/flags/24/KR.png)
![Helmi, Olga](https://theplayer.com/graphics/flags/24/DK.png)
![Lee, Eunhye](https://theplayer.com/graphics/flags/24/KR.png)
![Um, Seon Young](https://theplayer.com/graphics/flags/24/KR.png)
![Lee, So-Ra](https://theplayer.com/graphics/flags/24/KR.png)
![Han, Heejin](https://theplayer.com/graphics/flags/24/KR.png)
![Oh, Dabin](https://theplayer.com/graphics/flags/24/KR.png)
![Shin, Hyeseo](https://theplayer.com/graphics/flags/24/KR.png)
![Wi, Hwiwon](https://theplayer.com/graphics/flags/24/KR.png)
![Kim, Da Hye](https://theplayer.com/graphics/flags/24/KR.png)
![Yoshitomi, Aiko](https://theplayer.com/graphics/flags/24/JP.png)
![Jeong, Sunam](https://theplayer.com/graphics/flags/24/KR.png)
![Mishina, Daria](https://theplayer.com/graphics/flags/24/RU.png)
![Yea, Hyojung](https://theplayer.com/graphics/flags/24/KR.png)
![Hosogi, Sakura](https://theplayer.com/graphics/flags/24/JP.png)
![Fukuda, Shiori](https://theplayer.com/graphics/flags/24/JP.png)
![Koshiishi, Ayumi](https://theplayer.com/graphics/flags/24/JP.png)
![Mu, Shou Na](https://theplayer.com/graphics/flags/24/CN.png)
![Matsuda, Misaki](https://theplayer.com/graphics/flags/24/JP.png)
![Morisaki, Kanako](https://theplayer.com/graphics/flags/24/JP.png)
![Okuno, Ayaka](https://theplayer.com/graphics/flags/24/JP.png)
![Kim, Da Ye](https://theplayer.com/graphics/flags/24/KR.png)
![Helmi, Olga](https://theplayer.com/graphics/flags/24/DK.png)
![Lee, Eunhye](https://theplayer.com/graphics/flags/24/KR.png)
![Lee, So-Ra](https://theplayer.com/graphics/flags/24/KR.png)
![Oh, Dabin](https://theplayer.com/graphics/flags/24/KR.png)
![Kim, Da Hye](https://theplayer.com/graphics/flags/24/KR.png)
![Jeong, Sunam](https://theplayer.com/graphics/flags/24/KR.png)
![Mishina, Daria](https://theplayer.com/graphics/flags/24/RU.png)
![Fukuda, Shiori](https://theplayer.com/graphics/flags/24/JP.png)
![Koshiishi, Ayumi](https://theplayer.com/graphics/flags/24/JP.png)
![Matsuda, Misaki](https://theplayer.com/graphics/flags/24/JP.png)
![Kim, Da Ye](https://theplayer.com/graphics/flags/24/KR.png)
![Lee, Eunhye](https://theplayer.com/graphics/flags/24/KR.png)
![Lee, So-Ra](https://theplayer.com/graphics/flags/24/KR.png)
![Jeong, Sunam](https://theplayer.com/graphics/flags/24/KR.png)