Jannik Sinner vs Steven Diez Head-to-Head Stats, Results & Performance Comparison

Wojtek Kolan

Our Predictions

H2H Records Career Stats

HEAD TO HEAD
J. Sinner vs S. Diez

Jannik Sinner

ITA

1

Win

Played

0

Win

Age

6'2" (188 cm)

Height

5'9" (175 cm)

C. Rank

876

Best Rank

134

Total Titles

YTD Titles

$35.4M

Career Money

$335.9K

Right-Handed

Plays

Right-Handed

Steven Diez

CAN

1

Win

Played

0

Win

Age

6'2" (188 cm)

Height

5'9" (175 cm)

C. Rank

876

Best Rank

134

Total Titles

YTD Titles

$35.4M

Career Money

$335.9K

Right-Handed

Plays

Right-Handed

Head-to-head: Sinner 1 - 0 Diez

They have played 3 sets in total, with Jannik Sinner winning 2 and Steven Diez winning 1. The last match between Jannik Sinner and Steven Diez was at the Ostrava Challenger, 04-05-2019, Round: SF, Surface: Clay, with Jannik Sinner getting the victory 6-4 4-6 6-2.

Players	Head To Head Match Wins
Sinner	1
Diez	0

Last 1 H2H Matches:

(SF) Ostrava Challenger(05-04-19)

Stats

Jannik Sinner

Steven Diez

J. Sinner vs S. Diez H2H Profile

J. Sinner	Stats	S. Diez
$35,370,985	Career Prize Money	$335,910
75.29% (396-130)	Career Total W/L	54.64% (571-474)
1	Clay	0
28	Titles	24
1	Total H2H Matches	0
88.89% (48-6)	YTD Win/Loss	0% (0-0)
4	YTD Titles	0

J. Sinner vs S. Diez Match Preview:

Second serve performance recent form: In recent form (last 6 months), Jannik Sinner has won 41.31% of points on their second serve, while Steven Diez has won 38.58%. There is a high correlation between this stat and match prediction accuracy.
Return game stats recent form: Return stats show Jannik Sinner, in recent form, has won 39.92% of their opponent's second serve points, while Steven Diez has won 44.68%. The same stats for first serve returns are 21.50% and 35.26% respectively and this has a high correlation to pick who is favored in this H2H matchup.
Under pressure analysis: Jannik Sinner has saved 52.86% of breakpoints in recent form, whereas Steven Diez has saved 50.00% which is a useful statistic for in-game betting predictions.
Performance overview: Over the last year Jannik Sinner has won 90.32% of matches played (W/L 56/6), with Steven Diez winning 52.00% (W/L 13/12) that gives us an overall head-to head prediction overview.
Best surface: Jannik Sinner has their best career surface win % on I.hard, winning 81% (W/L 105/25), and worse career win % on Clay, winning 69% (W/L 98/45). Steven Diez has their best career surface win % on Hard, winning 81% (W/L 212/163), and worse career win % on Grass, winning 25% (W/L 3/9).
Player level: In the last year, Jannik Sinner has played most of their matches on the Grand Slam, winning 92.86% of matches (W/L 26/2), where as Steven Diez has played most of their matches on the Futures/Satellites/ITF tournaments $10K, winning 58.82% of matches (W/L 10/7). 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 Jannik Sinner winning 1 times and Steven Diez being victorious 0 times. They have played 3 sets in total, with Jannik Sinner winning 2 and Steven Diez winning 1.
The last match between Jannik Sinner and Steven Diez was at the Ostrava Challenger, 04-05-2019, Round: SF, Surface: Clay, with Jannik Sinner getting the victory 6-4 4-6 6-2.
Head to head match duration: In past head to head matches, the average match time between these players has been 2:8:44.
Opponent quality stats: Over the last 12 months, Jannik Sinner has played against opponents with an average rank of 38.85 while Steven Diez has played against players with an average rank of 351.8.
Deciding set performance vs all players: If you are interested in live predictions and betting, if this match goes into a deciding set, Jannik Sinner has won 67% of deciding sets over the last 12 months, while Steven Diez has won 14% in all matches played on tour.
Break point conversion: In recent form, Jannik Sinner has converted 23.84% of breakpoint opportunities, and Steven Diez has converted 47.83% of their chances to break their opponents serve. A telling stat for in-game live betting tips when either player has a breakpoint opportunity.

Jannik Sinner vs Steven Diez Editorial Preview By TennisTipster88.

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

J. Sinner	Stats	S. Diez
1	H2H Matches Won	0
2	Sets Won	1
16	Games Won	12
5	Aces (Total)	2
2	Total Double Faults	0
2:8:44	Average Match Time	2:8:44
47% (46/97)	1st Serve %	73% (67/92)
65% (30/46)	1st Serve Win %	55% (37/67)
55% (28/51)	2nd Serve Win %	48% (12/25)
38% (5/13)	Break Pts Won %	30% (3/10)
47% (43/92)	Return Points Win %	40% (39/97)
100% (1/1)	Best‑of‑3 Win %	0% (0/1)
100% (1/1)	Deciding Set 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

J. Sinner Recent Matches Played

OPPONENT	RESULT	SCORE	H2H
Erste Bank Open - Vienna - 20-10-2025
F Alexander ZverevA. Zverev	W	3-6 6-3 7-5	Stats
SF Alex De MinaurA. De	W	6-3 6-4	Stats
QF Alexander BublikA. Bublik	W	6-4 6-4	Stats
R2 Flavio CobolliF. Cobolli	W	6-2 7-6(4)	Stats
R1 Daniel AltmaierD. Altmaier	W	6-0 6-2	Stats

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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

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

J. Sinner	Stats	S. Diez
75.29% (396/130)	YTD Win/Loss	54.64% (571/474)
70.11% (950/405)	Sets Win/Loss	54.52% (1285/1072)
56.73% (7327/5588)	Games Win/Loss	52.19% (11187/10250)
77.51% (162/47)	Hard Win/Loss	56.53% (212/163)
68.53% (98/45)	Clay Win/Loss	55.87% (338/267)
80.15% (105/26)	Indoor Hard W/L	33.96% (18/35)
72.09% (31/12)	Grass Win/Loss	25.00% (3/9)
0.44	Aces Per Game	0.11
2782	Aces Total	1110
0.17	Double Faults Per Game	0.17
1066	Total Double Faults	1791
1:49:55	Average Match Time	1:9:1
257.11	Average Opponent Rank	573.46
59% (22521/37981)	1st Serve %	63% (29963/47216)
74% (16773/22521)	1st Serve Win %	65% (19468/29963)
55% (8428/15460)	2nd Serve Win %	49% (8390/17253)
43% (1753/4066)	Break Points Won % (Total)	46% (2388/5143)
41% (16400/40040)	Return Points Win %	42% (20073/47619)
81.08% (90/21)	Slam W/L	42.86% (15/20)
74.79% (89/30)	Masters W/L	25.00% (4/12)
93.75% (15/1)	Cups W/L	0.00% (0/4)
76.16% (115/36)	Main Tour W/L	34.48% (20/38)
83.33% (10/2)	Tour Finals W/L	0% (0/0)
66.67% (30/15)	Challenger W/L	45.31% (198/239)
65.28% (47/25)	Futures W/L	67.47% (334/161)
74% (302/406)	Best of 3 Sets Win %	55% (557/1009)
80% (91/114)	Best of 5 Sets Win %	33% (3/9)
63% (124/196)	Tiebreaks Win % (Total)	47% (109/233)
63% (94/150)	Deciding Set Win %	48% (136/285)
89% (380/340)	1st Set Won, Won Match	83% (588/490)
11% (380/40)	1st Set Won, Lost Match	16% (588/97)
38% (146/55)	1st Set Lost, Won Match	18% (456/80)