Player research cockpit

AyumiKoshiishi

TennisJack analysis

Ayumi Koshiishi currently has a useful TennisJack sample of 33 completed matches, with a 48.5% win rate in the loaded match history. The recent form line is 5-5 across the latest 10 completed matches.

Latest rank #473

Matches33Completed matches

Win rate48.5%Across all matches

Latest form5-5In latest 10 matches

Index statusReview candidateProfile confidence

Performance metrics

Hold Base55.5%

Break Pressure40.5%

Latest form (10 matches)

5-5

L W W L L W W L W L

Surface profile

Hardcourt outdoor

Canonical/players/ayumi-koshiishi/

Index statusReview candidate

Last updatedData from TennisJack

Profile intelligence

Ten signals worth watching.

Built from 33 completed TennisJack matches: form, surface, odds, pressure and close-set behavior. The full match log stays below for audit.

Player DNA

Quick fingerprint from starts, service base, return bite and decider exposure.

Balanced starts Break-heavy player

Set 1 punch54.5%

Service shield55.5%

Return bite40.5%

Decider risk21.2%

Favorite / Underdog Split

How the player behaves when priced as market favorite versus outsider.

Favorite 78.6% 11-3 - 14 matches Avg odds 1.45 | 1+ set 78.6%

Underdog 26.3% 5-14 - 19 matches Avg odds 2.81 | 1+ set 47.4%

First Set Personality

Shows whether the player starts cleanly, breaks first, or survives early pressure.

Set 1 win54.5%

Breaks first S127.3%

Broken first S172.7%

Recovers S137.5%

Break Pressure Profile

Return damage versus service leakage, built from set-level break counters.

Avg breaks3.97

Avg broken4.24

Balance-0.27

Clean service matches3.0%

3+ breaks produced75.8%

Set 2 win45.5%

Clean Win / Comeback Index

Separates smooth 2-0 wins from matches where the player had to repair damage.

43.8%Clean 2-0 share among wins

Clean 2-0 wins7

Comeback signals19

Lost set 1, won match1

Comeback index57.6%

Surface Edge

Where the profile is most trustworthy and where the win rate really travels.

Primary surfaceHardcourt outdoor

Primary record13-14

Primary WR48.1%

Best surfaceHardcourt indoor 50.0%

Hardcourt outdoor13-1448.1%

Hardcourt indoor3-350.0%

Odds Value Pulse

Shows whether the player wins as expected or creates value at outsider prices.

Avg win odds1.66

Avg loss odds2.78

Biggest win odds2.75

2.00+ odds WR23.5%

2.00+ sample17

Odds sample33

Decider Profile

How often matches become complicated, and whether the player survives the third set.

Three-set share21.2%

Decider record3-4

Set 3 win42.9%

After losing S16.7%

Close Set Risk

Tie-break and 7-5 / 7-6 pressure profile, useful for spotting fragile edges.

Close sets9-10

Close-set WR47.4%

Tie-breaks5-1

Matches with tight set16

Momentum Trend

Compares the latest 5 matches with the previous 10 so form shifts are visible immediately.

Heating up · 1 losses running

L W W L L W W L W L

Latest 5 WR60.0%

Previous 10 WR40.0%

Latest 53-2

Previous 104-6

Trend delta+20.0%

Latest 5 WR60.0%

Match log

All Ayumi Koshiishi matches in the TennisJack sample.

Scan date, tournament, surface, opponent, set score, result and service-return indicators before opening the deeper tools.

Open Player Research

Date	Match	Score	Result	Hold / Break
17.11.2025	Ayumi Koshiishi vs Ya-Yi YangITF W75 Sydney	3-6 4-6Hardcourt outdoor	Loss	Hold 40.0% Break 33.3%
16.11.2025	Ayumi Koshiishi vs Giselle Isabella GuillenITF W75 Sydney	6-0 6-2Hardcourt outdoor	Win	Hold 100.0% Break 71.4%
14.11.2025	Ayumi Koshiishi vs Sijia WeiITF W50 Brisbane	1-6 2-6Hardcourt outdoor	Loss	Hold 12.5% Break 28.6%
13.11.2025	Ayumi Koshiishi vs Arina VaraksinaITF W50 Brisbane	6-2 7-6Hardcourt outdoor	Win	Hold 80.0% Break 36.4%
11.11.2025	Ayumi Koshiishi vs Petra HuleITF W50 Brisbane	6-3 5-2Hardcourt outdoor	Win	Hold 88.9% Break 50.0%
28.10.2025	Ayumi Koshiishi vs Kayla CrossITF W75 Toronto	6-2 2-6 3-6Hardcourt indoor	Loss	Hold 53.9% Break 33.3%
24.10.2025	Ayumi Koshiishi vs Anna RogersITF W75 Saguenay	2-6 4-5Hardcourt indoor	Loss	Hold 50.0% Break 22.2%
24.10.2025	Ayumi Koshiishi vs Teah ChavezITF W75 Saguenay	7-6 2-6 6-2Hardcourt indoor	Win	Hold 57.1% Break 40.0%
21.10.2025	Ayumi Koshiishi vs Alexandra VagramovITF W75 Saguenay	6-4 3-6 6-3Hardcourt indoor	Win	Hold 71.4% Break 35.7%
13.10.2025Round 14	Ayumi Koshiishi vs Priska Madelyn NugrohoWTA Jinan	7-6 3-6 5-7Hardcourt outdoor	Loss	Hold 56.2% Break 27.8%
23.09.2025	Ayumi Koshiishi vs Misaki MatsudaITF W100 Incheon	4-6 6-4 2-6Hardcourt outdoor	Loss	Hold 57.1% Break 28.6%
18.09.2025	Ayumi Koshiishi vs Aliona FaleiITF W35 Shenyang	1-6 1-6Hardcourt indoor	Loss	Hold 28.6% Break 0.0%
16.09.2025	Ayumi Koshiishi vs Yidi YangITF W35 Shenyang	6-1 6-3Hardcourt indoor	Win	Hold 62.5% Break 87.5%
11.09.2025	Ayumi Koshiishi vs Yufei RenITF W50 Guiyang	6-2 4-6 3-6Hardcourt outdoor	Loss	Hold 50.0% Break 46.1%
09.09.2025	Ayumi Koshiishi vs Kallista LiuITF W50 Guiyang	7-6 6-2Hardcourt outdoor	Win	Hold 60.0% Break 54.5%
04.09.2025	Ayumi Koshiishi vs Yeon Woo KuITF W35 Nakhon Pathom	0-6 2-6Hardcourt outdoor	Loss	Hold 28.6% Break 0.0%
03.09.2025	Ayumi Koshiishi vs Hikaru SatoITF W35 Nakhon Pathom	6-4 6-2Hardcourt outdoor	Win	Hold 88.9% Break 44.4%
26.08.2025	Ayumi Koshiishi vs Eunhye LeeITF W35 Nakhon Pathom	6-7 3-6Hardcourt outdoor	Loss	Hold 50.0% Break 33.3%
05.08.2025	Ayumi Koshiishi vs Eva Guerrero AlvarezITF W50 Ourense	3-6 4-6Hardcourt outdoor	Loss	Hold 40.0% Break 33.3%
29.07.2025	Ayumi Koshiishi vs Nao NishinoITF W35 Roehampton	4-6 4-6Hardcourt outdoor	Loss	Hold 40.0% Break 40.0%
22.07.2025	Ayumi Koshiishi vs Misaki MatsudaW35 Monastir	3-6 1-6Hardcourt outdoor	Loss	Hold 37.5% Break 12.5%
17.07.2025	Ayumi Koshiishi vs Vendula ValdmannovaITF W50 Nottingham	0-6 1-6Hardcourt outdoor	Loss	Hold 16.7% Break 0.0%
17.07.2025	Ayumi Koshiishi vs Klara VeldmanITF W50 Nottingham	6-4 6-2Hardcourt outdoor	Win	Hold 66.7% Break 66.7%
16.07.2025	Ayumi Koshiishi vs Mia WainwrightITF W50 Nottingham	6-2 6-3Hardcourt outdoor	Win	Hold 66.7% Break 75.0%
13.06.2025	Ayumi Koshiishi vs Meiling WangITF W35 Luzhou	3-6 0-6Hardcourt outdoor	Loss	Hold 37.5% Break 0.0%
12.06.2025	Ayumi Koshiishi vs Amy ZhuW35 Luzhou	6-3 6-2Hardcourt outdoor	Win	Hold 77.8% Break 62.5%
11.06.2025	Ayumi Koshiishi vs Viktoria MorvayovaW35 Luzhou	4-6 6-2 6-2Hardcourt outdoor	Win	Hold 84.6% Break 38.5%
22.05.2025	Ayumi Koshiishi vs Dayeon BackW35 Andong	0-6 3-6Hardcourt outdoor	Loss	Hold 25.0% Break 14.3%
21.05.2025	Ayumi Koshiishi vs Eunhye LeeW35 Andong	6-3 6-1Hardcourt outdoor	Win	Hold 87.5% Break 62.5%
19.05.2025	Ayumi Koshiishi vs Hiroko KuwataW35 Andong	7-6 6-1Hardcourt outdoor	Win	Hold 33.3% Break 81.8%
16.05.2025	Ayumi Koshiishi vs Wushuang ZhengW35 Changwon	4-6 3-6Hardcourt outdoor	Loss	Hold 40.0% Break 33.3%
15.05.2025	Ayumi Koshiishi vs Ena KoikeW35 Changwon	6-3 6-3Hardcourt outdoor	Win	Hold 66.7% Break 66.7%
14.05.2025	Ayumi Koshiishi vs Hikaru SatoW35 Changwon	6-2 5-2Hardcourt outdoor	Win	Hold 75.0% Break 75.0%