Haruka Kaji vs Yeon Woo Ku Head-to-Head Stats, Results & Performance Comparison

Wojtek Kolan

Our Predictions

H2H Records Career Stats

HEAD TO HEAD
H. Kaji vs Y. Woo Ku

Haruka Kaji

JPN

1

Win

Played

2

Win

Age

Height

262

C. Rank

298

213

Best Rank

294

Total Titles

YTD Titles

$48.1K

Career Money

$9.5K

Plays

Yeon Woo Ku

KOR

1

Win

Played

2

Win

Age

Height

262

C. Rank

298

213

Best Rank

294

Total Titles

YTD Titles

$48.1K

Career Money

$9.5K

Plays

Head-to-head: Kaji 1 - 2 Ku

They have played 8 sets in total, with Haruka Kaji winning 3 and Yeon Woo Ku winning 5. The last match between Yeon Woo Ku and Haruka Kaji was at the Korea Open - Seoul, 14-09-2024, Round: Q1, Surface: Hard, with Yeon Woo Ku getting the victory 0-6 6-3 6-2.

Players	Head To Head Match Wins
Kaji	1
Ku	2

Last 3 H2H Matches:

(Q1) Korea Open - Seoul(09-14-24)

Stats

Yeon Woo Ku

Haruka Kaji

(R1) W35 Roehampton(07-30-24)

Stats

Yeon Woo Ku

Haruka Kaji

(R2) W35 Changwon(05-30-24)

Stats

Haruka Kaji

Yeon Woo Ku

H. Kaji vs Y. W. Ku H2H Profile

H. Kaji	Stats	Y. W. Ku
$48,125	Career Prize Money	$9,533
55.89% (318-251)	Career Total W/L	63.72% (202-115)
1	Hard	2
7	Titles	5
1	Total H2H Matches	2
0% (0-0)	YTD Win/Loss	0.00% (0-1)

H. Kaji vs Y. W. Ku Match Preview:

Second serve performance recent form: In recent form (last 6 months), Haruka Kaji has won 38.58% of points on their second serve, while Yeon Woo Ku has won 37.81%. There is a high correlation between this stat and match prediction accuracy.
Return game stats recent form: Return stats show Haruka Kaji, in recent form, has won 55.01% of their opponent's second serve points, while Yeon Woo Ku has won 52.16%. The same stats for first serve returns are 35.92% and 36.82% respectively and this has a high correlation to pick who is favored in this H2H matchup.
Under pressure analysis: Haruka Kaji has saved 47.30% of breakpoints in recent form, whereas Yeon Woo Ku has saved 44.68% which is a useful statistic for in-game betting predictions.
Performance overview: Over the last year Haruka Kaji has won 54.17% of matches played (W/L 39/33), with Yeon Woo Ku winning 67.14% (W/L 47/23) that gives us an overall head-to head prediction overview.
Best surface: Haruka Kaji has their best career surface win % on I.hard, winning 56% (W/L 19/15), and worse career win % on Clay, winning 47% (W/L 15/17). Yeon Woo Ku has their best career surface win % on I.hard, winning 56% (W/L 20/9), and worse career win % on Grass, winning 50% (W/L 2/2).
Player level: In the last year, Haruka Kaji has played most of their matches on the Challengers/ITF tournaments > $10K, winning 57.35% of matches (W/L 39/29), where as Yeon Woo Ku has played most of their matches on the Challengers/ITF tournaments > $10K, winning 68.33% of matches (W/L 41/19). When comparing stats between players to predict the favorite, it is of course all relative to the event level they have been playing at.
Direct H2H matches: They have played 3 times before with Haruka Kaji winning 1 times and Yeon Woo Ku being victorious 2 times. They have played 8 sets in total, with Haruka Kaji winning 3 and Yeon Woo Ku winning 5.
The last match between Haruka Kaji and Yeon Woo Ku was at the Korea Open - Seoul, 14-09-2024, Round: Q1, Surface: Hard, with Yeon Woo Ku getting the victory 0-6 6-3 6-2.
Head to head match duration: In past head to head matches, the average match time between these players has been 1:59:16.
Deciding set H2H prediction: Haruka Kaji and Yeon Woo Ku have played a deciding set 2 times, with Haruka Kaji winning 1 times and Yeon Woo Ku 1 times. Very useful for predicting the outcome if this match goes the distance.
Opponent quality stats: Over the last 12 months, Haruka Kaji has played against opponents with an average rank of 367.03 while Yeon Woo Ku has played against players with an average rank of 432.41.
Deciding set performance vs all players: If you are interested in live predictions and betting, if this match goes into a deciding set, Haruka Kaji has won 50% of deciding sets over the last 12 months, while Yeon Woo Ku has won 40% in all matches played on tour.
Break point conversion: In recent form, Haruka Kaji has converted 41.28% of breakpoint opportunities, and Yeon Woo Ku has converted 39.69% of their chances to break their opponents serve. A telling stat for in-game live betting tips when either player has a breakpoint opportunity.

Haruka Kaji vs Yeon Woo Ku Editorial Preview By TennisTipster88.

H. Kaji vs Y. W. Ku H2H Stats Used In Our Predictions

H. Kaji	Stats	Y. W. Ku
1	H2H Matches Won	2
3	Sets Won	5
30	Games Won	36
0	Aces (Total)	1
6	Total Double Faults	14
1:59:16	Average Match Time	1:59:16
72% (143/200)	1st Serve %	66% (156/235)
55% (78/143)	1st Serve Win %	58% (90/156)
44% (25/57)	2nd Serve Win %	48% (38/79)
33% (13/39)	Break Pts Won %	64% (16/25)
46% (107/235)	Return Points Win %	49% (97/200)
33% (1/3)	Best‑of‑3 Win %	67% (2/3)
50% (1/2)	Deciding Set Win %	50% (1/2)
0% (0/1)	1st Set Won, Won Match	50% (1/2)
100% (1/1)	1st Set Won, Lost Match	50% (1/2)
50% (1/2)	1st Set Lost, Won Match	100% (1/1)

Recent Performance Stats

H. Kaji Recent Matches Played

OPPONENT	RESULT	SCORE	H2H
WTA 125 Jinan Open - Jinan - 13-10-2025
R2 Xinyu GaoX. Gao	L	6-3 6-3	Stats
R1 Yufei RenY. Ren	W	4-6 6-2 7-5	Stats
W35 Kunshan - 06-10-2025
QF Carol Young Suh LeeC. Young	L	6-3 2-6 7-6(5)	Stats
R2 Katarina ZavatskaK. Zavatska	W	7-6(2) 6-1	Stats
R1 Ying ZhangY. Zhang	W	7-6(4) 6-4	Stats

View All

Y. W. Ku Recent Matches Played

OPPONENT	RESULT	SCORE	H2H
WTA 125 Jinan Open - Jinan - 13-10-2025
Q1 Katarina ZavatskaK. Zavatska	L	6-4 2-6 7-5	Stats
W100 Incheon - 22-09-2025
QF Nao HibinoN. Hibino	L	4-6 6-2 6-2	Stats
R2 Misaki MatsudaM. Matsuda	W	6-2 6-3	Stats
R1 Dabin KimD. Kim	W	6-3 6-1	Stats
Korea Open - Seoul - 15-09-2025
R1 Lois BoissonL. Boisson	L	6-2 6-1	Stats

View All

H. Kaji vs Y. W. Ku Stats Breakdown Vs All H2H Opponents

H. Kaji	Stats	Y. W. Ku
55.89% (318/251)	YTD Win/Loss	63.72% (202/115)
53.33% (689/603)	Sets Win/Loss	63.03% (457/268)
50.95% (5950/5729)	Games Win/Loss	56.85% (3718/2822)
56.14% (233/182)	Hard Win/Loss	63.16% (156/91)
46.88% (15/17)	Clay Win/Loss	64.86% (24/13)
58.33% (56/40)	Indoor Hard W/L	68.97% (20/9)
53.85% (14/12)	Grass Win/Loss	50.00% (2/2)
0.08	Aces Per Game	0.07
439	Aces Total	230
0.2	Double Faults Per Game	0.32
1158	Total Double Faults	1028
1:21:58	Average Match Time	1:26:10
525.97	Average Opponent Rank	462.33
65% (19400/29981)	1st Serve %	64% (11822/18508)
59% (11364/19400)	1st Serve Win %	61% (7182/11822)
46% (4853/10582)	2nd Serve Win %	45% (3026/6686)
49% (1877/3830)	Break Points Won % (Total)	52% (1394/2694)
46% (13943/30007)	Return Points Win %	50% (9239/18456)
33.33% (1/2)	Slam W/L	0% (0/0)
0% (0/0)	Cups W/L	28.57% (2/5)
8.33% (1/11)	Main Tour W/L	50.00% (4/4)
55.48% (253/203)	Challenger W/L	61.11% (132/84)
64.29% (63/35)	Futures W/L	74.42% (64/22)
55% (307/557)	Best of 3 Sets Win %	64% (200/313)
67% (2/3)	Best of 5 Sets Win %	50% (1/2)
55% (58/105)	Tiebreaks Win % (Total)	47% (31/66)
60% (99/164)	Deciding Set Win %	42% (38/91)
86% (296/256)	1st Set Won, Won Match	85% (209/178)
13% (296/39)	1st Set Won, Lost Match	15% (209/31)
21% (271/56)	1st Set Lost, Won Match	22% (108/24)