Ayumi Koshiishi vs Eudice Wong Chong Head-to-Head Stats, Results & Performance Comparison

Wojtek Kolan

Our Predictions

H2H Records Career Stats

HEAD TO HEAD
A. Koshiishi vs E. Wong Chong

Ayumi Koshiishi

JPN

1

Win

Played

1

Win

Age

Height

446

C. Rank

518

367

Best Rank

213

Total Titles

YTD Titles

Career Money

$9.7K

Plays

Eudice Wong Chong

HKG

1

Win

Played

1

Win

Age

Height

446

C. Rank

518

367

Best Rank

213

Total Titles

YTD Titles

Career Money

$9.7K

Plays

Head-to-head: Koshiishi 1 - 1 Chong

They have played 5 sets in total, with Ayumi Koshiishi winning 2 and Eudice Wong Chong winning 3. The last match between Ayumi Koshiishi and Eudice Wong Chong was at the W75 Nonthaburi, 08-01-2025, Round: R1, Surface: Hard, with Ayumi Koshiishi getting the victory 6-2 4-6 6-4.

Players	Head To Head Match Wins
Koshiishi	1
Chong	1

Last 2 H2H Matches:

(R1) W75 Nonthaburi(01-08-25)

Stats

Ayumi Koshiishi

Eudice Wong Chong

(QF) W15 Xiamen(03-22-19)

Stats

Eudice Wong Chong

Ayumi Koshiishi

A. Koshiishi vs E. W. Chong H2H Profile

A. Koshiishi	Stats	E. W. Chong
$0	Career Prize Money	$9,725
62.03% (294-180)	Career Total W/L	56.41% (242-187)
1	Hard	1
8	Titles	6
1	Total H2H Matches	1
0% (0-0)	YTD Win/Loss	33.33% (1-2)

A. Koshiishi vs E. W. Chong Match Preview:

Second serve performance recent form: In recent form (last 6 months), Ayumi Koshiishi has won 35.77% of points on their second serve, while Eudice Wong Chong has won 41.33%. There is a high correlation between this stat and match prediction accuracy.
Return game stats recent form: Return stats show Ayumi Koshiishi, in recent form, has won 48.73% of their opponent's second serve points, while Eudice Wong Chong has won 51.06%. The same stats for first serve returns are 34.62% and 32.89% respectively and this has a high correlation to pick who is favored in this H2H matchup.
Under pressure analysis: Ayumi Koshiishi has saved 42.29% of breakpoints in recent form, whereas Eudice Wong Chong has saved 54.82% which is a useful statistic for in-game betting predictions.
Performance overview: Over the last year Ayumi Koshiishi has won 51.56% of matches played (W/L 33/31), with Eudice Wong Chong winning 51.61% (W/L 16/15) that gives us an overall head-to head prediction overview.
Best surface: Ayumi Koshiishi has their best career surface win % on Hard, winning 64% (W/L 221/127), and worse career win % on I.hard, winning 55% (W/L 24/20). Eudice Wong Chong has their best career surface win % on Hard, winning 64% (W/L 207/150), and worse career win % on Clay, winning 48% (W/L 16/17).
Player level: In the last year, Ayumi Koshiishi has played most of their matches on the Challengers/ITF tournaments > $10K, winning 51.56% of matches (W/L 33/31), where as Eudice Wong Chong has played most of their matches on the Challengers/ITF tournaments > $10K, winning 53.57% of matches (W/L 15/13). 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 2 times before with Ayumi Koshiishi winning 1 times and Eudice Wong Chong being victorious 1 times. They have played 5 sets in total, with Ayumi Koshiishi winning 2 and Eudice Wong Chong winning 3.
The last match between Ayumi Koshiishi and Eudice Wong Chong was at the W75 Nonthaburi, 08-01-2025, Round: R1, Surface: Hard, with Ayumi Koshiishi getting the victory 6-2 4-6 6-4.
Head to head match duration: In past head to head matches, the average match time between these players has been 1:59:59.
Opponent quality stats: Over the last 12 months, Ayumi Koshiishi has played against opponents with an average rank of 408.13 while Eudice Wong Chong has played against players with an average rank of 431.
Deciding set performance vs all players: If you are interested in live predictions and betting, if this match goes into a deciding set, Ayumi Koshiishi has won 60% of deciding sets over the last 12 months, while Eudice Wong Chong has won 33% in all matches played on tour.
Break point conversion: In recent form, Ayumi Koshiishi has converted 36.90% of breakpoint opportunities, and Eudice Wong Chong has converted 37.50% of their chances to break their opponents serve. A telling stat for in-game live betting tips when either player has a breakpoint opportunity.

Ayumi Koshiishi vs Eudice Wong Chong Editorial Preview By TennisTipster88.

A. Koshiishi vs E. W. Chong H2H Stats Used In Our Predictions

A. Koshiishi	Stats	E. W. Chong
1	H2H Matches Won	1
2	Sets Won	3
21	Games Won	24
2	Aces (Total)	0
8	Total Double Faults	4
1:59:59	Average Match Time	1:59:59
64% (101/159)	1st Serve %	62% (97/156)
45% (45/101)	1st Serve Win %	54% (52/97)
41% (24/58)	2nd Serve Win %	32% (19/59)
50% (14/28)	Break Pts Won %	62% (16/26)
54% (85/156)	Return Points Win %	57% (90/159)
50% (1/2)	Best‑of‑3 Win %	50% (1/2)
100% (1/1)	Deciding Set Win %	0% (0/1)
100% (1/1)	1st Set Won, Won Match	100% (1/1)
0% (0/1)	1st Set Won, Lost Match	0% (0/1)
0% (0/1)	1st Set Lost, Won Match	0% (0/1)

Recent Performance Stats

A. Koshiishi Recent Matches Played

OPPONENT	RESULT	SCORE	H2H
W75 Sydney - 17-11-2025
Q3 Ya-Yi YangY. Yang	L	6-3 6-4	Stats
Q1 Giselle Isabella GuillenG. Isabella	W	6-0 6-2	Stats
W50 Brisbane - 10-11-2025
QF Sijia WeiS. Wei	L	6-1 6-2	Stats
R2 Arina VaraksinaA. Varaksina	W	6-2 7-6(5)	Stats
R1 Petra HuleP. Hule	W	6-3 6-2	Stats

View All

E. W. Chong Recent Matches Played

OPPONENT	RESULT	SCORE	H2H
Hong Kong Tennis Open - Hong Kong - 27-10-2025
R2 Himeno SakatsumeH. Sakatsume	L	6-2 6-1	Stats
R1 Suzan LamensS. Lamens	W	6-3 6-4	Stats
Huzhou Open - Huzhou - 08-09-2025
Q1 Jessica PieriJ. Pieri	L	6-0 7-6(5)	Stats
WTA Changsha Open - Changsha - 01-09-2025
Q1 Ekaterina ReyngoldE. Reyngold	L	6-4 6-1	Stats
W100 Gran Canaria-Maspalomas - 28-07-2025
R1 Jessica BertoldoJ. Bertoldo	L	6-1 5-7 7-6(5)	Stats

View All

A. Koshiishi vs E. W. Chong Stats Breakdown Vs All H2H Opponents

A. Koshiishi	Stats	E. W. Chong
62.03% (294/180)	YTD Win/Loss	56.41% (242/187)
60.59% (638/415)	Sets Win/Loss	55.12% (554/451)
54.90% (5126/4211)	Games Win/Loss	51.69% (4792/4479)
63.51% (221/127)	Hard Win/Loss	57.98% (207/150)
63.41% (26/15)	Clay Win/Loss	48.48% (16/17)
55.29% (47/38)	Indoor Hard W/L	48.72% (19/20)
0.18	Aces Per Game	0.08
830	Aces Total	341
0.29	Double Faults Per Game	0.24
1339	Total Double Faults	1110
1:15:56	Average Match Time	1:30:47
510.39	Average Opponent Rank	521.19
60% (13743/22857)	1st Serve %	66% (16417/24935)
61% (8447/13743)	1st Serve Win %	60% (9821/16417)
45% (4109/9113)	2nd Serve Win %	45% (3855/8518)
50% (1543/3102)	Break Points Won % (Total)	48% (1612/3353)
48% (10864/22690)	Return Points Win %	47% (12154/25790)
0% (0/0)	Slam W/L	0.00% (0/1)
0% (0/0)	Cups W/L	25.00% (1/3)
0% (0/0)	Main Tour W/L	30.77% (4/9)
52.77% (143/128)	Challenger W/L	57.63% (170/125)
74.38% (151/52)	Futures W/L	57.76% (67/49)
62% (287/464)	Best of 3 Sets Win %	56% (238/422)
100% (2/2)	Best of 5 Sets Win %	67% (2/3)
58% (46/79)	Tiebreaks Win % (Total)	60% (50/83)
50% (56/111)	Deciding Set Win %	52% (77/148)
90% (294/264)	1st Set Won, Won Match	84% (232/194)
10% (294/29)	1st Set Won, Lost Match	16% (232/38)
17% (180/30)	1st Set Lost, Won Match	24% (197/48)