Stefan Kozlov vs Quentin Halys Head-to-Head Stats, Results & Performance Comparison

Wojtek Kolan

Our Predictions

H2H Records Career Stats

HEAD TO HEAD
S. Kozlov vs Q. Halys

Stefan Kozlov

USA

0

Win

Played

1

Win

Age

6'0" (183 cm)

Height

6'3" (191 cm)

458

C. Rank

103

Best Rank

Total Titles

YTD Titles

$372.0K

Career Money

$2.4M

Right-Handed

Plays

Right-Handed

Quentin Halys

FRA

0

Win

Played

1

Win

Age

6'0" (183 cm)

Height

6'3" (191 cm)

458

C. Rank

103

Best Rank

Total Titles

YTD Titles

$372.0K

Career Money

$2.4M

Right-Handed

Plays

Right-Handed

Head-to-head: Kozlov 0 - 1 Halys

They have played 2 sets in total, with Stefan Kozlov winning 0 and Quentin Halys winning 2. The last match between Quentin Halys and Stefan Kozlov was at the BB&T Atlanta Open - Atlanta, 24-07-2017, Round: R1, Surface: Hard, with Quentin Halys getting the victory 7-5 7-6(7).

Players	Head To Head Match Wins
Kozlov	0
Halys	1

Last 1 H2H Matches:

(R1) BB&T Atlanta Open - Atlanta(07-24-17)

Stats

Quentin Halys

Stefan Kozlov

S. Kozlov vs Q. Halys H2H Profile

S. Kozlov	Stats	Q. Halys
$371,951	Career Prize Money	$2,353,775
56.98% (343-259)	Career Total W/L	55.47% (426-342)
0	Hard	1
10	Titles	12
0	Total H2H Matches	1
0% (0-0)	YTD Win/Loss	33.33% (12-24)

S. Kozlov vs Q. Halys Match Preview:

Second serve performance recent form: In recent form (last 6 months), Stefan Kozlov has won 46.37% of points on their second serve, while Quentin Halys has won 47.75%. There is a high correlation between this stat and match prediction accuracy.
Return game stats recent form: Return stats show Stefan Kozlov, in recent form, has won 47.94% of their opponent's second serve points, while Quentin Halys has won 42.97%. The same stats for first serve returns are 29.27% and 20.96% respectively and this has a high correlation to pick who is favored in this H2H matchup.
Under pressure analysis: Stefan Kozlov has saved 50.00% of breakpoints in recent form, whereas Quentin Halys has saved 53.89% which is a useful statistic for in-game betting predictions.
Performance overview: Over the last year Stefan Kozlov has won 69.44% of matches played (W/L 25/11), with Quentin Halys winning 38.00% (W/L 19/31) that gives us an overall head-to head prediction overview.
Best surface: Stefan Kozlov has their best career surface win % on I.hard, winning 64% (W/L 85/48), and worse career win % on Grass, winning 38% (W/L 15/24). Quentin Halys has their best career surface win % on I.hard, winning 64% (W/L 146/107), and worse career win % on Clay, winning 53% (W/L 114/101).
Player level: In the last year, Stefan Kozlov has played most of their matches on the Challengers/ITF tournaments > $10K, winning 67.86% of matches (W/L 19/9), where as Quentin Halys has played most of their matches on the Main tour, winning 41.38% of matches (W/L 12/17). 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 Stefan Kozlov winning 0 times and Quentin Halys being victorious 1 times. They have played 2 sets in total, with Stefan Kozlov winning 0 and Quentin Halys winning 2.
The last match between Stefan Kozlov and Quentin Halys was at the BB&T Atlanta Open - Atlanta, 24-07-2017, Round: R1, Surface: Hard, with Quentin Halys getting the victory 7-5 7-6(7).
Head to head match duration: In past head to head matches, the average match time between these players has been 1:47:35.
Opponent quality stats: Over the last 12 months, Stefan Kozlov has played against opponents with an average rank of 402.42 while Quentin Halys has played against players with an average rank of 130.4.
Deciding set performance vs all players: If you are interested in live predictions and betting, if this match goes into a deciding set, Stefan Kozlov has won 67% of deciding sets over the last 12 months, while Quentin Halys has won 37% in all matches played on tour.
Break point conversion: In recent form, Stefan Kozlov has converted 38.68% of breakpoint opportunities, and Quentin Halys has converted 26.05% of their chances to break their opponents serve. A telling stat for in-game live betting tips when either player has a breakpoint opportunity.

Stefan Kozlov vs Quentin Halys Editorial Preview By TennisTipster88.

S. Kozlov vs Q. Halys H2H Stats Used In Our Predictions

S. Kozlov	Stats	Q. Halys
0	H2H Matches Won	1
0	Sets Won	2
11	Games Won	14
6	Aces (Total)	9
8	Total Double Faults	6
1:47:35	Average Match Time	1:47:35
74% (60/81)	1st Serve %	60% (55/92)
75% (45/60)	1st Serve Win %	71% (39/55)
38% (8/21)	2nd Serve Win %	59% (22/37)
13% (1/8)	Break Pts Won %	29% (2/7)
34% (31/92)	Return Points Win %	35% (28/81)
0% (0/1)	Best‑of‑3 Win %	100% (1/1)
0% (0/0)	1st Set Won, Won Match	100% (1/1)
0% (0/0)	1st Set Won, Lost Match	0% (0/1)
0% (0/1)	1st Set Lost, Won Match	0% (0/0)

Recent Performance Stats

S. Kozlov Recent Matches Played

OPPONENT	RESULT	SCORE	H2H
Champaign Challenger - 10-11-2025
SF Cedrik-Marcel StebeC. Stebe	W	6-0 4-0 ret.	Stats
QF Darwin BlanchD. Blanch	W	6-2 6-7(7) 6-3	Stats
R2 Tyler ZinkT. Zink	W	6-3 6-3	Stats
R1 Leo BorgL. Borg	W	6-1 6-0	Stats
Knoxville Challenger - 03-11-2025
R2 Jay ClarkeJ. Clarke	L	6-2 2-6 6-3	Stats

View All

Q. Halys Recent Matches Played

OPPONENT	RESULT	SCORE	H2H
Moselle Open - Metz - 03-11-2025
R1 Matteo BerrettiniM. Berrettini	L	6-2 6-4	Stats
Rolex Paris Masters - Paris - 27-10-2025
Q1 Damir DzumhurD. Dzumhur	L	4-6 6-3 6-1	Stats
Swiss Indoors Basel - Basel - 20-10-2025
R1 Casper RuudC. Ruud	L	6-1 7-6(3)	Stats
Q3 Remy BertolaR. Bertola	L	6-4 6-4	Stats
Q1 Alexander ShevchenkoA. Shevchenko	W	6-3 6-7(4) 7-6(2)	Stats

View All

S. Kozlov vs Q. Halys Stats Breakdown Vs All H2H Opponents

S. Kozlov	Stats	Q. Halys
56.98% (343/259)	YTD Win/Loss	55.40% (426/343)
54.19% (769/650)	Sets Win/Loss	54.91% (1024/841)
51.59% (6805/6385)	Games Win/Loss	51.93% (9676/8956)
55.33% (166/134)	Hard Win/Loss	54.27% (127/107)
59.23% (77/53)	Clay Win/Loss	53.02% (114/101)
63.91% (85/48)	Indoor Hard W/L	58.27% (162/116)
38.46% (15/24)	Grass Win/Loss	54.76% (23/19)
0.23	Aces Per Game	0.72
1451	Aces Total	6524
0.33	Double Faults Per Game	0.36
2114	Total Double Faults	3295
1:35:8	Average Match Time	1:23:28
564.05	Average Opponent Rank	482.04
61% (23022/37635)	1st Serve %	59% (29093/49627)
66% (15251/23022)	1st Serve Win %	77% (22535/29093)
48% (7063/14613)	2nd Serve Win %	48% (9838/20534)
42% (1791/4238)	Break Points Won % (Total)	38% (1532/3984)
42% (15887/38168)	Return Points Win %	36% (18123/49983)
31.03% (9/20)	Slam W/L	49.38% (40/41)
23.53% (4/13)	Masters W/L	36.11% (13/23)
0% (0/0)	Cups W/L	100.00% (1/0)
38.81% (26/41)	Main Tour W/L	45.80% (60/71)
58.50% (203/144)	Challenger W/L	57.87% (228/166)
71.13% (101/41)	Futures W/L	67.20% (84/41)
57% (335/584)	Best of 3 Sets Win %	57% (410/716)
45% (5/11)	Best of 5 Sets Win %	33% (13/39)
48% (69/145)	Tiebreaks Win % (Total)	53% (212/403)
61% (129/210)	Deciding Set Win %	48% (135/280)
87% (315/275)	1st Set Won, Won Match	79% (430/341)
12% (315/38)	1st Set Won, Lost Match	20% (430/88)
24% (287/68)	1st Set Lost, Won Match	26% (336/86)