Sijia Wei vs Haruka Kaji Head-to-Head Stats, Results & Performance Comparison

Wojtek Kolan

Our Predictions

H2H Records Career Stats

HEAD TO HEAD
S. Wei vs H. Kaji

Sijia Wei

CHN

1

Win

Played

0

Win

Age

Height

207

C. Rank

251

114

Best Rank

213

Total Titles

YTD Titles

$319.7K

Career Money

$48.1K

Plays

Haruka Kaji

JPN

1

Win

Played

0

Win

Age

Height

207

C. Rank

251

114

Best Rank

213

Total Titles

YTD Titles

$319.7K

Career Money

$48.1K

Plays

Head-to-head: Wei 1 - 0 Kaji

They have played 2 sets in total, with Sijia Wei winning 2 and Haruka Kaji winning 0. The last match between Sijia Wei and Haruka Kaji was at the W75 Burnie, 09-02-2024, Round: QF, Surface: Hard, with Sijia Wei getting the victory 6-3 6-4.

Players	Head To Head Match Wins
Wei	1
Kaji	0

Last 1 H2H Matches:

(QF) W75 Burnie(02-09-24)

Stats

Sijia Wei

Haruka Kaji

S. Wei vs H. Kaji H2H Profile

S. Wei	Stats	H. Kaji
$319,660	Career Prize Money	$48,125
64.26% (187-104)	Career Total W/L	55.87% (319-252)
1	Hard	0
10	Titles	7
1	Total H2H Matches	0
0.00% (0-5)	YTD Win/Loss	0% (0-0)

S. Wei vs H. Kaji Match Preview:

Second serve performance recent form: In recent form (last 6 months), Sijia Wei has won 40.97% of points on their second serve, while Haruka Kaji has won 38.58%. There is a high correlation between this stat and match prediction accuracy.
Return game stats recent form: Return stats show Sijia Wei, in recent form, has won 47.50% of their opponent's second serve points, while Haruka Kaji has won 52.65%. The same stats for first serve returns are 35.48% and 36.15% respectively and this has a high correlation to pick who is favored in this H2H matchup.
Under pressure analysis: Sijia Wei has saved 49.78% of breakpoints in recent form, whereas Haruka Kaji has saved 44.73% which is a useful statistic for in-game betting predictions.
Performance overview: Over the last year Sijia Wei has won 46.81% of matches played (W/L 22/25), with Haruka Kaji winning 54.29% (W/L 38/32) that gives us an overall head-to head prediction overview.
Best surface: Sijia Wei has their best career surface win % on I.hard, winning 71% (W/L 10/4), and worse career win % on Grass, winning 33% (W/L 3/6). Haruka Kaji has their best career surface win % on I.hard, winning 71% (W/L 19/15), and worse career win % on Clay, winning 47% (W/L 15/17).
Player level: In the last year, Sijia Wei has played most of their matches on the Challengers/ITF tournaments > $10K, winning 46.15% of matches (W/L 12/14), where as Haruka Kaji has played most of their matches on the Challengers/ITF tournaments > $10K, winning 56.92% of matches (W/L 37/28). 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 1 times before with Sijia Wei winning 1 times and Haruka Kaji being victorious 0 times. They have played 2 sets in total, with Sijia Wei winning 2 and Haruka Kaji winning 0.
The last match between Sijia Wei and Haruka Kaji was at the W75 Burnie, 09-02-2024, Round: QF, Surface: Hard, with Sijia Wei getting the victory 6-3 6-4.
Head to head match duration: In past head to head matches, the average match time between these players has been 1:20:0.
Opponent quality stats: Over the last 12 months, Sijia Wei has played against opponents with an average rank of 221.79 while Haruka Kaji has played against players with an average rank of 370.46.
Deciding set performance vs all players: If you are interested in live predictions and betting, if this match goes into a deciding set, Sijia Wei has won 50% of deciding sets over the last 12 months, while Haruka Kaji has won 47% in all matches played on tour.
Break point conversion: In recent form, Sijia Wei has converted 40.43% of breakpoint opportunities, and Haruka Kaji has converted 41.81% of their chances to break their opponents serve. A telling stat for in-game live betting tips when either player has a breakpoint opportunity.

Sijia Wei vs Haruka Kaji Editorial Preview By TennisTipster88.

S. Wei vs H. Kaji H2H Stats Used In Our Predictions

S. Wei	Stats	H. Kaji
1	H2H Matches Won	0
2	Sets Won	0
12	Games Won	7
2	Aces (Total)	1
2	Total Double Faults	1
1:20:0	Average Match Time	1:20:0
72% (41/57)	1st Serve %	79% (52/66)
76% (31/41)	1st Serve Win %	58% (30/52)
50% (8/16)	2nd Serve Win %	50% (7/14)
27% (3/11)	Break Pts Won %	100% (1/1)
44% (29/66)	Return Points Win %	32% (18/57)
100% (1/1)	Best‑of‑3 Win %	0% (0/1)
100% (1/1)	1st Set Won, Won Match	0% (0/0)
0% (0/1)	1st Set Won, Lost Match	0% (0/0)
0% (0/0)	1st Set Lost, Won Match	0% (0/1)

Recent Performance Stats

S. Wei Recent Matches Played

OPPONENT	RESULT	SCORE	H2H
Jiangxi Open - Jiujiang - 27-10-2025
R1 Anna BondarA. Bondar	L	6-2 6-2	Stats
Guangzhou Open - Guangzhou - 20-10-2025
Q1 Tamara KorpatschT. Korpatsch	L	6-7(5) 6-0 2-0 ret.	Stats
WTA 125 Jinan Open - Jinan - 13-10-2025
R2 Anna BondarA. Bondar	L	6-1 7-5	Stats
R1 Katarina ZavatskaK. Zavatska	W	7-5 7-6(4)	Stats
China Open - Beijing - 22-09-2025
R1 Zeynep SonmezZ. Sonmez	L	6-2 6-0	Stats

View All

H. Kaji Recent Matches Played

OPPONENT	RESULT	SCORE	H2H
Hong Kong Tennis Open - Hong Kong - 27-10-2025
Q3 Kristiana SidorovaK. Sidorova	L	6-1 6-2	Stats
Q1 Kallista LiuK. Liu	W	7-6(4) 6-4	Stats
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

View All

S. Wei vs H. Kaji Stats Breakdown Vs All H2H Opponents

S. Wei	Stats	H. Kaji
64.26% (187/104)	YTD Win/Loss	55.87% (319/252)
62.25% (399/242)	Sets Win/Loss	53.32% (691/605)
55.74% (3230/2565)	Games Win/Loss	50.92% (5966/5751)
67.21% (166/81)	Hard Win/Loss	56.12% (234/183)
38.10% (8/13)	Clay Win/Loss	46.88% (15/17)
71.43% (10/4)	Indoor Hard W/L	58.33% (56/40)
33.33% (3/6)	Grass Win/Loss	53.85% (14/12)
0.19	Aces Per Game	0.08
542	Aces Total	445
0.32	Double Faults Per Game	0.2
909	Total Double Faults	1165
1:21:8	Average Match Time	1st Match
415.54	Average Opponent Rank	529.13
57% (9523/16572)	1st Serve %	65% (19498/30118)
64% (6137/9523)	1st Serve Win %	59% (11424/19498)
48% (3353/7049)	2nd Serve Win %	46% (4871/10621)
50% (1110/2212)	Break Points Won % (Total)	49% (1880/3839)
48% (7977/16636)	Return Points Win %	46% (13992/30135)
52.94% (9/8)	Slam W/L	33.33% (1/2)
16.67% (1/5)	Masters W/L	0% (0/0)
50.00% (1/1)	Cups W/L	0% (0/0)
42.86% (9/12)	Main Tour W/L	14.29% (2/12)
63.40% (97/56)	Challenger W/L	55.48% (253/203)
76.09% (70/22)	Futures W/L	64.29% (63/35)
65% (184/281)	Best of 3 Sets Win %	55% (308/559)
0% (0/2)	Best of 5 Sets Win %	67% (2/3)
56% (25/45)	Tiebreaks Win % (Total)	56% (59/106)
60% (39/65)	Deciding Set Win %	60% (99/164)
92% (181/166)	1st Set Won, Won Match	87% (297/257)
8% (181/15)	1st Set Won, Lost Match	13% (297/39)
18% (110/20)	1st Set Lost, Won Match	21% (272/56)