Honori Koyama vs Ji Won Jang Head-to-Head Stats, Results & Performance Comparison

Wojtek Kolan

Our Predictions

H2H Records Career Stats

HEAD TO HEAD
H. Koyama vs J. Won Jang

Honori Koyama

JPN

1

Win

Played

0

Win

Age

Height

C. Rank

Best Rank

Total Titles

Ytd Titles

Career Money

Plays

Ji Won Jang

KOR

1

Win

Played

0

Win

Age

Height

C. Rank

Best Rank

Total Titles

Ytd Titles

Career Money

Plays

Head-To-Head: Koyama 1 - 0 Jang

They have played 2 sets in total, with Honori Koyama winning 2 and Ji Won Jang winning 0. The last match between Honori Koyama and Ji Won Jang was at the W15 Yeongwol, 31-08-2025, Round: Q1, Surface: Hard, with Honori Koyama getting the victory 6-4 6-0.

Players	Head To Head Match Wins
Koyama	1
Jang	0

Last H2H Matches:

(Q1) W15 Yeongwol(08-31-25)

Stats

Honori Koyama

Ji Won Jang

H. Koyama vs J. W. Jang H2H Profile

H. Koyama	Stats	J. W. Jang
$0	Career Prize Money	$0
49.43% (43-44)	Career Total W/L	0.00% (0-2)
1	Hard	0
1	Total H2H Matches	0
0% (0-0)	YTD Win/Loss	0% (0-0)

H. Koyama vs J. W. Jang Match Preview

Second serve performance recent form: In recent form (last 6 months), Honori Koyama has won 35.90% of points on their second serve, while Ji Won Jang has won 0%. There is a high correlation between this stat and match prediction accuracy.
Return game stats recent form: Return stats show Honori Koyama, in recent form, has won 53.19% of their opponent's second serve points, while Ji Won Jang has won 0%. The same stats for first serve returns are 35.19% and 0% respectively and this has a high correlation to pick who is favored in this H2H matchup.
Under pressure analysis: Honori Koyama has saved 44.72% of breakpoints in recent form, whereas Ji Won Jang has saved 0% which is a useful statistic for in-game betting predictions.
Performance overview: Over the last year Honori Koyama has won 51.16% of matches played (W/L 22/ 21), with Ji Won Jang winning 0% (W/L 22/ 2) that gives us an overall head-to head prediction overview.
Best surface: Honori Koyama has their best career surface win % on Hard, winning 51% (W/L 41/ 40), and worse career win % on I.hard, winning 0% (W/L 0/ 1). Ji Won Jang has their best career surface win % on Hard, winning 0% (W/L 0/ 2), and worse career win % on Hard, winning 0% (W/L 0/ 2).
Player level: In the last year, Honori Koyama has played most of their matches on the Futures/Satellites/ITF tournaments $10K, winning 52.50% of matches (W/L 21/ 19), where as Ji Won Jang has played most of their matches on the Futures/Satellites/ITF tournaments $10K, winning 0.00% of matches (W/L 0/ 2). 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 Honori Koyama winning 1 times and Ji Won Jang being victorious 0 times. They have played 2 sets in total, with Honori Koyama winning 2 and Ji Won Jang winning 0. The last match between Honori Koyama and Ji Won Jang was at the W15 Yeongwol, 31-08-2025, Round: Q1, Surface: Hard, with Honori Koyama getting the victory 6-4 6-0.
Head to head match duration: In past head to head matches, the average match time between these players has been 0:0:0.
Opponent quality stats: Over the last 12 months, Honori Koyama has played against opponents with an average rank of 168.19 while Ji Won Jang has played against players with an average rank of 0.
Deciding set performance vs all players: If you are interested in live predictions and betting, if this match goes into a deciding set, Honori Koyama has won 62% of deciding sets over the last 12 months, while Ji Won Jang has won 0% in all matches played on tour.
Break point conversion: In recent form, Honori Koyama has converted 33.33% of breakpoint opportunities, and Ji Won Jang has converted 0% of their chances to break their opponents serve. A telling stat for in-game live betting tips when either player has a breakpoint opportunity.

Honori Koyama vs Ji Won Jang Editorial Preview By TennisTipster88.

H. Koyama vs J. W. Jang H2H Stats Used In Our Predictions

H. Koyama	Stats	J. W. Jang
1	H2H Matches Won	0
2	Sets Won	0
12	Games Won	4
0:0:0	Avg. Match Time	0:0:0
100% (1/1)	Best‑of‑3 Win %	0% (0/1)
100% (1/1)	1st Set Won → Match Won	0% (0/0)
0% (0/1)	1st Set Won → Match Lost	0% (0/0)
0% (0/0)	1st Set Lost → Match Won	0% (0/1)

Recent Performance Stats

H. Koyama Recent Matches Played

OPPONENT	RESULT	SCORE	H2H
W15 Yeongwol - 08-09-2025
Q1 Han Gyeol JeongH. Gyeol	L	2-6 6-2 10-6	Stats
W15 Yeongwol - 01-09-2025
R1 Hwiwon WiH. Wi	L	6-2 6-1	Stats
Q3 Yesung ChooY. Choo	W	4-6 7-5 10-5	Stats
Q2 Seojin ParkS. Park	W	6-0 6-3	Stats
Q1 Ji Won JangJ. Won	W	6-4 6-0	Stats

View All

J. W. Jang Recent Matches Played

OPPONENT	RESULT	SCORE	H2H
W15 Yeongwol - 08-09-2025
Q1 Kanna SoedaK. Soeda	L	6-2 6-4	Stats
W15 Yeongwol - 01-09-2025
Q1 Honori KoyamaH. Koyama	L	6-4 6-0	Stats

View All

H. Koyama vs J. W. Jang Stats Breakdown Vs All H2H Opponents

H. Koyama	Stats	J. W. Jang
49.43% (43/44)	YTD Win/Loss	0.00% (0/2)
48.21% (94/101)	Sets Win/Loss	0.00% (0/4)
49.29% (903/929)	Games Win/Loss	29.41% (10/24)
50.62% (41/40)	Hard Win/Loss	0.00% (0/2)
40.00% (2/3)	Indoor Hard W/L	0% (0/0)
0.00% (0/1)	Grass Win/Loss	0% (0/0)
0.04	Aces Per Game	0
34	Aces Total	0
0.16	Double Faults Per Game	0
144	Total Double Faults	0
1st Match	Average Match Time	1st Match
175.48	Average Opponent Rank	0
67% (1576/2342)	1st Serve %	0% (0/0)
56% (875/1576)	1st Serve Win %	0% (0/0)
39% (296/766)	2nd Serve Win %	0% (0/0)
45% (124/276)	Break Points Won % (Total)	0% (0/0)
44% (1023/2350)	Return Points Win %	0% (0/0)
0.00% (0/1)	Main Tour W/L	0% (0/0)
40.00% (4/6)	Challenger W/L	0% (0/0)
51.32% (39/37)	Futures W/L	0.00% (0/2)
49% (43/87)	Best of 3 Sets Win %	0% (0/2)
27% (3/11)	Tiebreaks Win % (Total)	0% (0/0)
62% (13/21)	Deciding Set Win %	0% (0/0)
92% (37/34)	1st Set Won, Won Match	0% (0/0)
8% (37/3)	1st Set Won, Lost Match	0% (0/0)
18% (50/9)	1st Set Lost, Won Match	0% (2/0)