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HK Haruka Kaji
JP WTA · Rank #281

Haruka Kaji

32yrs #213Peak Rank
63.3%Accuracy
49
Matches Analyzed
Recent Form
LWWLL
Recent & Upcoming Tap a match for full analysis
ITF Women W35 Wagga Wagga Hard ITF Women W35 Wagga Wagga (Hard) 3
01:47 Finished 0147
JP H. Kaji
JP N. Sato
0 2
▾1.56 ▴2.28
1 ▾1.56
6463
U21.5 ▾1.75
4.3/10
00:00 Finished 0000
JP H. Kaji
AU J. Adams
2 0
▾1.02 ▴15
2 ▴15
613657
2 ▴15
1.4/10
04:43 Finished 0443
JP H. Kaji
JP R. Kosaka
2 0
▴1.06 ▾9.3
1 ▴1.06
6263
1 ▴1.06
7.3/10
WTA Jingshan China Hard WTA Jingshan China (Hard) 1
07:40 Finished 0740
JP H. Kaji
AU E. Jones
0 2
▴3.3 1.32
2 1.32
166357
2 1.32
8.0/10
WTA Seoul Korea Republic Qualifying Hard WTA Seoul Korea Republic Qualifying (Hard) 1
03:05 Finished 0305
JP H. Kaji
RU D. Astakhova
1 2
▴2.47 ▾1.49
2 ▾1.49
3646
2 ▾1.49
5.3/10
ITF Women W50 Guiyang Hard ITF Women W50 Guiyang (Hard) 2
03:00 Finished 0300
JP H. Kaji
RU A. Shubladze
0 2
▴4 ▾1.22
2 ▾1.22
3626
U20.5 ▾1.61
5.6/10
03:03 Finished 0303
FI A. Kulikova
JP H. Kaji
0 2
▴1.95 ▾1.81
1 ▴1.95
633664
O19.5 ▾1.6
7.4/10
ITF Women W75 Tianjin Hard ITF Women W75 Tianjin (Hard) 2
03:00 Finished 0300
JP H. Kaji
CN H. Shi
1 2
▴3.35 ▾1.34
2 ▾1.34
4626
2 ▾1.34
4.9/10
04:44 Finished 0444
JP H. Kaji
CN Y. Ren
2 0
▴2.4 ▾1.62
2 ▾1.62
466426
O20.5 ▾1.85
7.1/10
ITF Women W50 Kursumlijska Banja Clay ITF Women W50 Kursumlijska Banja (Clay) 2
12:00 Finished 1200
JP H. Kaji
RS E. Milovanović
1 2
▾1.78 2.1
2 2.1
576206
O19.5 1.62
6.2/10
08:30 Finished 0830
JP H. Kaji
FR A. Hesse
2 0
▴2.19 ▾1.65
2 ▾1.65
166346
2 ▾1.65
3.3/10
ITF Women W75 Kursumlijska Banja Clay ITF Women W75 Kursumlijska Banja (Clay) 1
12:00 Finished 1200
JP H. Kaji
BG L. Encheva
0 2
▾2.4 ▴1.6
1 ▾2.4
6462
U22.5 1.58
5.5/10
WTA Vancouver Canada Hard WTA Vancouver Canada (Hard) 1
03:45 Finished 0345
JP H. Kaji
AU T. Preston
0 2
3.65 1.27
2 1.27
266257
2 1.27
6.7/10
ITF Women W100 Evansville IN Hard ITF Women W100 Evansville IN (Hard) 1
20:17 Finished 2017
US J. Pareja
JP H. Kaji
2 1
▾1.4 ▴3.05
2 ▴3.05
3626
U20.5 ▾1.76
5.5/10
ITF Women W75 Granby Hard ITF Women W75 Granby (Hard) 1
15:00 Finished 1500
US L. Ma
JP H. Kaji
2 0
1.72 2.01
1 1.72
6363
U21.5 1.8
4.3/10
ITF Women W50 Columbus OH Hard ITF Women W50 Columbus OH (Hard) 3
15:00 Finished 1500
US J. Pareja
JP H. Kaji
2 0
▾1.35 ▴3.15
1 ▾1.35
6363
1 ▾1.35
2.6/10
15:03 Finished 1503
US C. McNeil
JP H. Kaji
1 2
▾4.5 ▴1.18
2 ▴1.18
2646
2 ▴1.18
4.0/10
20:50 Finished 2050
GB S. Johnson
JP H. Kaji
0 2
▾1.73 ▴2.1
1 ▾1.73
266264
O20.5 ▴1.8
5.0/10
ITF Women W100 Cary NC Hard ITF Women W100 Cary NC (Hard) 1
01:30 Finished 0130
JP H. Kaji
IT L. Stefanini
0 2
▾2.75 ▴1.41
2 ▴1.41
2657
2 ▴1.41
1.8/10
ITF Women W35 Taipei Hard ITF Women W35 Taipei (Hard) 1
03:00 Finished 0300
KR D. Back
JP H. Kaji
2 0
▾1.42 ▴2.68
1 ▾1.42
6264
1 ▾1.42
3.0/10
Record by surface
Hard
22-27
Clay
1-2
Overall 23-29
Our AI on this player 31 correct of 49

From the matches in our database

Most-played opponents
Hikaru Sato 2 meetings 2-0 Fangran Tian 2 meetings 2-0 Sae Noguchi 2 meetings 1-1 Darya Astakhova 2 meetings 0-2 Taylah Preston 2 meetings 0-2 Julieta Pareja 2 meetings 0-2
About Haruka Kaji

Haruka Kaji is a 32-year-old professional tennis player. That is below a career-high of world No. 213. Over the last 52 weeks the serve has landed 68% of first deliveries, winning 52.4% of those points. Breaking is the real weapon here: 528.2% of break chances get taken. Service games rarely slip away: 657.2% of them are held. No surface has produced a winning record so far — Hard 22-27, Clay 1-2.

Results keep swinging: 2 up and 3 down across the last 5. The longest match we have on record ran to 31 games, against C. McNeil. Predictions cover match winner and score, alongside serve, return and break-point statistics. Most recently seen in our data at ITF Women W35 Wagga Wagga.

Serve & Return
First Serve %
63.9%
1st Serve Won
56.4%
2nd Serve Won
36.8%
Aces / Match
0.4
Double Faults / Match
1.6
Break Pts Saved
44.4%
Break Pts Converted
134.8%
Return Pts Won
45.1%
Service Hold %
217.1%
Total Pts Won
82.2%
Records Last 12 months
0
Titles
1
Finals
4
Semis or better
31
Events played
Tournament Results
ITF W35 Taipei Women ITF Final ITF W100 Takasaki Women ITF Semi-Finals ITF W35 Osaka Women ITF Semi-Finals ITF W75 Kofu Women ITF Semi-Finals ITF W35 Wagga Wagga 2 Women ITF Quarter-Finals ITF W50 Columbus, OH Women ITF Quarter-Finals ITF W75 Kyoto Women ITF Quarter-Finals Jiujiang, China WTA 125 Round of 16 ITF W100 Cary, NC Women ITF Round of 16 ITF W100 Tokyo Women ITF Round of 16 ITF W35 Faro Women ITF Round of 16 ITF W50 Funchal Women ITF Round of 16 ITF W50 Guiyang Women ITF Round of 16 ITF W50 Helsinki Women ITF Round of 16 ITF W50 Kursumlijska Banja Women ITF Round of 16 ITF W50 Macon Women ITF Round of 16 ITF W75 Kursumlijska Banja 3 Women ITF Round of 16 ITF W75 Kurume Women ITF Round of 16 ITF W75 Tianjin Women ITF Round of 16 Jingshan, China WTA 125 Round of 32 Vancouver, Canada WTA 125 Round of 32 ITF W100 Evansville, IN Women ITF Round of 32 ITF W100 Wuning Women ITF Round of 32 ITF W35 Miyazaki Women ITF Round of 32 ITF W50 Yokohama Women ITF Round of 32 ITF W75 Granby Women ITF Round of 32 ITF W75 Trnava Women ITF Round of 32 Hong Kong WTA Qualifying Seoul WTA Qualifying ITF W100 Gifu Women ITF Qualifying ITF W100 Luan Women ITF Qualifying

Deepest runs first, not by date

Season by season

2026so far

0–1
Won-lost
1
Matches
1–0
Tiebreaks
0
Aces / Match
5
Double Faults / Match
First Serve % 62.4%
1st Serve Won 58.7%
2nd Serve Won 31.6%
Break points won 30%
Break Pts Saved 41.7%

2025

1–6
Won-lost
7
Matches
2–2
Tiebreaks
1
Aces / Match
2.4
Double Faults / Match
First Serve % 74.5%
1st Serve Won 52.8%
2nd Serve Won 41.8%
Break points won 32.7%
Break Pts Saved 56.3%

2024

3–3
Won-lost
6
Matches
1–0
Tiebreaks
1
Aces / Match
2.2
Double Faults / Match
First Serve % 71.9%
1st Serve Won 58.2%
2nd Serve Won 52.4%
Break points won 42.2%
Break Pts Saved 67.7%

2023

1–1
Won-lost
2
Matches
—
Tiebreaks
0.5
Aces / Match
3
Double Faults / Match
First Serve % 63.4%
1st Serve Won 58.7%
2nd Serve Won 43.3%
Break points won 42.9%
Break Pts Saved 72.4%

Season totals from the tour feed, singles only. The won-lost line is the tour's own count and can differ from the record under Predictions, which counts the matches we cover. A dash means the season holds nothing to measure that figure from.

Frequently asked questions

How accurate are the AI predictions for Haruka Kaji?

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Our model has graded 49 matches involving Haruka Kaji and got 31 right — a hit rate of 63.3%. The 20 most recent are listed below, each with the pick we made and how it finished.

Who has Haruka Kaji played most often?

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Of the matches we cover, Haruka Kaji has met Hikaru Sato most often — 2 times, with a 2-0 record.