Steven Diez vs Jumpei Yamasaki Head-to-Head Stats, Results & Performance Comparison

Wojtek Kolan

Our Predictions

H2H Records Career Stats

HEAD TO HEAD
S. Diez vs J. Yamasaki

Steven Diez

CAN

1

Win

Played

0

Win

Age

5'9" (175 cm)

Height

5'11" (180 cm)

895

C. Rank

896

134

Best Rank

446

Total Titles

YTD Titles

$335.9K

Career Money

Right-Handed

Plays

Right-Handed

Jumpei Yamasaki

JPN

1

Win

Played

0

Win

Age

5'9" (175 cm)

Height

5'11" (180 cm)

895

C. Rank

896

134

Best Rank

446

Total Titles

YTD Titles

$335.9K

Career Money

Right-Handed

Plays

Right-Handed

Head-to-head: Diez 1 - 0 Yamasaki

They have played 2 sets in total, with Steven Diez winning 2 and Jumpei Yamasaki winning 0. The last match between Steven Diez and Jumpei Yamasaki was at the Spain F31, 28-09-2015, Round: R1, Surface: Clay, with Steven Diez getting the victory 6-1 6-0.

Players	Head To Head Match Wins
Diez	1
Yamasaki	0

Last 1 H2H Matches:

(R1) Spain F31(09-28-15)

Stats

Steven Diez

Jumpei Yamasaki

S. Diez vs J. Yamasaki H2H Profile

S. Diez	Stats	J. Yamasaki
$335,910	Career Prize Money	$0
54.64% (571-474)	Career Total W/L	57.86% (265-193)
1	Clay	0
24	Titles	3
1	Total H2H Matches	0
0% (0-0)	YTD Win/Loss	0% (0-0)

S. Diez vs J. Yamasaki Match Preview:

Second serve performance recent form: In recent form (last 6 months), Steven Diez has won 31.71% of points on their second serve, while Jumpei Yamasaki has won 43.81%. There is a high correlation between this stat and match prediction accuracy.
Return game stats recent form: Return stats show Steven Diez, in recent form, has won 50.00% of their opponent's second serve points, while Jumpei Yamasaki has won 48.46%. The same stats for first serve returns are 21.79% and 26.73% respectively and this has a high correlation to pick who is favored in this H2H matchup.
Under pressure analysis: Steven Diez has saved 41.67% of breakpoints in recent form, whereas Jumpei Yamasaki has saved 48.18% which is a useful statistic for in-game betting predictions.
Performance overview: Over the last year Steven Diez has won 52.00% of matches played (W/L 13/12), with Jumpei Yamasaki winning 63.27% (W/L 31/18) that gives us an overall head-to head prediction overview.
Best surface: Steven Diez has their best career surface win % on Hard, winning 57% (W/L 212/163), and worse career win % on Grass, winning 25% (W/L 3/9). Jumpei Yamasaki has their best career surface win % on I.hard, winning 57% (W/L 18/12), and worse career win % on Clay, winning 55% (W/L 31/25).
Player level: In the last year, Steven Diez has played most of their matches on the Futures/Satellites/ITF tournaments $10K, winning 58.82% of matches (W/L 10/7), where as Jumpei Yamasaki has played most of their matches on the Futures/Satellites/ITF tournaments $10K, winning 63.27% of matches (W/L 31/18). 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 Steven Diez winning 1 times and Jumpei Yamasaki being victorious 0 times. They have played 2 sets in total, with Steven Diez winning 2 and Jumpei Yamasaki winning 0.
The last match between Steven Diez and Jumpei Yamasaki was at the Spain F31, 28-09-2015, Round: R1, Surface: Clay, with Steven Diez getting the victory 6-1 6-0.
Head to head match duration: In past head to head matches, the average match time between these players has been 1:12:0.
Opponent quality stats: Over the last 12 months, Steven Diez has played against opponents with an average rank of 347.72 while Jumpei Yamasaki has played against players with an average rank of 402.55.
Deciding set performance vs all players: If you are interested in live predictions and betting, if this match goes into a deciding set, Steven Diez has won 14% of deciding sets over the last 12 months, while Jumpei Yamasaki has won 30% in all matches played on tour.
Break point conversion: In recent form, Steven Diez has converted 16.67% of breakpoint opportunities, and Jumpei Yamasaki has converted 28.95% of their chances to break their opponents serve. A telling stat for in-game live betting tips when either player has a breakpoint opportunity.

Steven Diez vs Jumpei Yamasaki Editorial Preview By TennisTipster88.

S. Diez vs J. Yamasaki H2H Stats Used In Our Predictions

S. Diez	Stats	J. Yamasaki
1	H2H Matches Won	0
2	Sets Won	0
12	Games Won	1
0	Aces (Total)	1
1	Total Double Faults	1
1:12:0	Average Match Time	1:12:0
69% (27/39)	1st Serve %	60% (28/47)
70% (19/27)	1st Serve Win %	32% (9/28)
50% (6/12)	2nd Serve Win %	32% (6/19)
70% (7/10)	Break Pts Won %	33% (1/3)
68% (32/47)	Return Points Win %	36% (14/39)
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. Diez Recent Matches Played

OPPONENT	RESULT	SCORE	H2H
Heilbronn Challenger - 02-06-2025
Q1 Rei SakamotoR. Sakamoto	L	4-6 6-0 6-3	Stats
M25 Vic - 12-05-2025
QF Lorenzo GiustinoL. Giustino	L	6-1 2-1 ret.	Stats
R2 Andres Santamarta RoigA. Santamarta	W	6-3 7-5	Stats
R1 Michiel De KromM. De	W	6-1 ret.	Stats
M25 Sabadell - 28-04-2025
R1 Sekou BangouraS. Bangoura	L	4-6 7-6(4) 6-1	Stats

View All

J. Yamasaki Recent Matches Played

OPPONENT	RESULT	SCORE	H2H
M25 Takasaki - 15-09-2025
QF Takuya KumasakaT. Kumasaka	L	6-7(6) 6-0 6-3	Stats
R2 Taiyo YamanakaT. Yamanaka	W	6-2 6-3	Stats
R1 Dominik PalanD. Palan	W	6-2 ret.	Stats
Q3 Jonathan MridhaJ. Mridha	W	7-5 7-6(6)	Stats
Q1 Ko SuzukiK. Suzuki	W	6-4 6-2	Stats

View All

S. Diez vs J. Yamasaki Stats Breakdown Vs All H2H Opponents

S. Diez	Stats	J. Yamasaki
54.64% (571/474)	YTD Win/Loss	57.86% (265/193)
54.52% (1285/1072)	Sets Win/Loss	56.06% (578/453)
52.19% (11187/10250)	Games Win/Loss	52.75% (5011/4489)
56.53% (212/163)	Hard Win/Loss	58.17% (210/151)
55.87% (338/267)	Clay Win/Loss	55.36% (31/25)
33.96% (18/35)	Indoor Hard W/L	58.54% (24/17)
25.00% (3/9)	Grass Win/Loss	0% (0/0)
0.11	Aces Per Game	0.22
1110	Aces Total	1012
0.17	Double Faults Per Game	0.1
1791	Total Double Faults	447
1:9:1	Average Match Time	1:21:7
576.16	Average Opponent Rank	501.7
63% (29963/47216)	1st Serve %	64% (14499/22594)
65% (19468/29963)	1st Serve Win %	66% (9502/14499)
49% (8390/17253)	2nd Serve Win %	50% (4014/8095)
46% (2388/5143)	Break Points Won % (Total)	44% (1029/2323)
42% (20073/47619)	Return Points Win %	41% (9439/23073)
42.86% (15/20)	Slam W/L	0% (0/0)
25.00% (4/12)	Masters W/L	0% (0/0)
0.00% (0/4)	Cups W/L	0% (0/0)
34.48% (20/38)	Main Tour W/L	0% (0/0)
45.31% (198/239)	Challenger W/L	36.11% (13/23)
67.47% (334/161)	Futures W/L	59.72% (252/170)
55% (557/1009)	Best of 3 Sets Win %	57% (255/446)
33% (3/9)	Best of 5 Sets Win %	100% (6/6)
47% (109/233)	Tiebreaks Win % (Total)	52% (56/108)
48% (136/285)	Deciding Set Win %	54% (62/115)
83% (588/490)	1st Set Won, Won Match	88% (259/227)
16% (588/97)	1st Set Won, Lost Match	12% (259/32)
18% (456/80)	1st Set Lost, Won Match	19% (198/37)