SK
ATP · Rank #271
ATP · Rank #271
Stefan Kozlov
28yrs
1.83 m
79 kg
Right
#103Peak Rank
56.6%Accuracy
53
Matches Analyzed
Recent Form
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Recent & Upcoming
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S. Kozlov vs M. Zheng, Challenger - Knoxville, USA, 23:00, Upcoming. Match winner odds: 2.43 for S. Kozlov, 1.55 for M. Zheng. AI confidence for this match: 4.9 out of 10. Please subscribe in order to see the predictions.
S. Kozlov
M. Zheng
(2)
S. Kozlov vs B. Shick, Challenger - Knoxville, USA, 17:45, Finished. Match winner odds: 1.4 for S. Kozlov, 2.88 for B. Shick. AI winner pick: B. Shick, odds 2.88, confidence 0.8 out of 10. This tip lost. Predicted score: 6-4, 3-6, 2-6. Best AI tip: O19.5, odds 1.53, confidence 1.0 out of 10. This tip lost.
S. Kozlov
B. Shick
A. Galarneau vs S. Kozlov, Challenger - Knoxville, USA, 22:20, Finished. Match winner odds: 2 for A. Galarneau, 1.82 for S. Kozlov. AI winner pick: A. Galarneau, odds 2, confidence 1.5 out of 10. This tip lost. Predicted score: 4-6, 6-2, 6-3. Best AI tip: O19.5, odds 1.44, confidence 2.2 out of 10. This tip won.
A. Galarneau
S. Kozlov
23:00
Upcoming
2300
S. Kozlov
M. Zheng
(2) –
2.43
▴1.55
4.9/10
17:45
Finished
1745
S. Kozlov
B. Shick
2
0
▾1.4
▴2.88
2
▴2.88
643626
O19.5
1.53
1.0/10
22:20
Finished
2220
A. Galarneau
S. Kozlov
0
2
▾2
▴1.82
1
▾2
466263
O19.5
1.44
2.2/10
S. Kozlov vs A. Mayo, Challenger - Charlottesville, USA, 18:00, Finished. Match winner odds: 2.46 for S. Kozlov, 1.53 for A. Mayo. AI winner pick: A. Mayo, odds 1.53, confidence 2.9 out of 10. This tip lost. Predicted score: 4-6, 4-6. Best AI tip: O19.5, odds 1.41, confidence 3.9 out of 10. This tip won.
S. Kozlov
A. Mayo
(Q)
C. Chidekh vs S. Kozlov, Challenger - Charlottesville, USA, 20:35, Finished. Match winner odds: 1.22 for C. Chidekh, 4.4 for S. Kozlov. AI winner pick: C. Chidekh, odds 1.22, confidence 9.2 out of 10. This tip lost. Predicted score: 6-3, 6-4. Best AI tip: C. Chidekh, odds 1.22, confidence 9.2 out of 10. This tip lost.
C. Chidekh
(5)
S. Kozlov
S. Kozlov vs B. Shick, Challenger - Charlottesville, USA, 18:00, Finished. Match winner odds: 1.54 for S. Kozlov, 2.55 for B. Shick. AI winner pick: B. Shick, odds 2.55, confidence 2.4 out of 10. This tip lost. Predicted score: 4-6, 6-2, 3-6. Best AI tip: O19.5, odds 1.5, confidence 2.6 out of 10. This tip lost.
S. Kozlov
B. Shick
M. Cassone vs S. Kozlov, Challenger - Charlottesville, USA, 16:25, Finished. Match winner odds: 1.57 for M. Cassone, 2.38 for S. Kozlov. AI winner pick: M. Cassone, odds 1.57, confidence 3.1 out of 10. This tip lost. Predicted score: 7-6, 4-6, 6-3. Best AI tip: M. Cassone, odds 1.57, confidence 3.1 out of 10. This tip lost.
M. Cassone
S. Kozlov
S. Kozlov vs A. Martin, Challenger - Charlottesville, USA, 15:00, Finished. Match winner odds: 1.84 for S. Kozlov, 1.97 for A. Martin. AI winner pick: S. Kozlov, odds 1.84, confidence 1.4 out of 10. This tip won. Predicted score: 4-6, 6-3, 6-3. Best AI tip: O19.5, odds 1.45, confidence 3.1 out of 10. This tip lost.
S. Kozlov
A. Martin
18:00
Finished
1800
S. Kozlov
A. Mayo
(Q) 2
1
▴2.46
▾1.53
2
▾1.53
4646
O19.5
▾1.41
3.9/10
20:35
Finished
2035
C. Chidekh
(5)
S. Kozlov
1
2
▴1.22
▾4.4
1
▴1.22
6364
1
▴1.22
9.2/10
18:00
Finished
1800
S. Kozlov
B. Shick
2
0
▾1.54
▴2.55
2
▴2.55
466236
O19.5
▴1.5
2.6/10
16:25
Finished
1625
M. Cassone
S. Kozlov
0
2
▾1.57
▴2.38
1
▾1.57
764663
1
▾1.57
3.1/10
15:00
Finished
1500
S. Kozlov
A. Martin
2
0
▾1.84
▴1.97
1
▾1.84
466363
O19.5
▴1.45
3.1/10
S. Kozlov vs M. Krueger, Challenger - Columbus, USA, 18:55, Finished. Match winner odds: 1.68 for S. Kozlov, 2.12 for M. Krueger. AI winner pick: S. Kozlov, odds 1.68, confidence 2.7 out of 10. This tip lost. Predicted score: 6-4, 3-6, 6-3. Best AI tip: O19.5, odds 1.45, confidence 4.0 out of 10. This tip won.
S. Kozlov
(8)
M. Krueger
S. Kozlov vs J. Trotter, Challenger - Columbus, USA, 22:05, Finished. Match winner odds: 1.93 for S. Kozlov, 1.92 for J. Trotter. AI winner pick: S. Kozlov, odds 1.93, confidence 1.8 out of 10. This tip won. Predicted score: 6-3, 6-4. Best AI tip: O19.5, odds 1.34, confidence 2.5 out of 10. This tip lost.
S. Kozlov
(8)
J. Trotter
18:55
Finished
1855
S. Kozlov
(8)
M. Krueger
1
2
▾1.68
▴2.12
1
▾1.68
643663
O19.5
▴1.45
4.0/10
22:05
Finished
2205
S. Kozlov
(8)
J. Trotter
2
0
▾1.93
▴1.92
1
▾1.93
6364
O19.5
1.34
2.5/10
S. Kozlov vs A. Magadan, Challenger - Bloomfield Hills, USA, 17:05, Finished. Match winner odds: 1.49 for S. Kozlov, 2.7 for A. Magadan. AI winner pick: S. Kozlov, odds 1.49, confidence 4.9 out of 10. This tip lost. Predicted score: 6-3, 7-6. Best AI tip: S. Kozlov, odds 1.49, confidence 4.9 out of 10. This tip lost.
S. Kozlov
A. Magadan
S. Kozlov vs R. Pascual, Challenger - Bloomfield Hills, USA, Qualifying, 17:15, Finished. Match winner odds: 1.4 for S. Kozlov, 2.75 for R. Pascual. AI winner pick: S. Kozlov, odds 1.4, confidence 5.0 out of 10. This tip lost. Predicted score: 6-2, 6-3. Best AI tip: S. Kozlov, odds 1.4, confidence 5.0 out of 10. This tip lost.
S. Kozlov
(1)
R. Pascual
(12)
S. Kozlov vs L. Vithoontien, Challenger - Bloomfield Hills, USA, Qualifying, 17:50, Finished. Match winner odds: 1.08 for S. Kozlov, 7.5 for L. Vithoontien. AI winner pick: S. Kozlov, odds 1.08, confidence 7.6 out of 10. This tip won. Predicted score: 6-2, 6-3. Best AI tip: S. Kozlov, odds 1.08, confidence 7.6 out of 10. This tip won.
S. Kozlov
L. Vithoontien
17:05
Finished
1705
S. Kozlov
A. Magadan
1
2
▴1.49
▾2.7
1
▴1.49
6376
1
▴1.49
4.9/10
17:15
Finished
1715
S. Kozlov
(1)
R. Pascual
(12) 0
2
▾1.4
▴2.75
1
▾1.4
6263
1
▾1.4
5.0/10
17:50
Finished
1750
S. Kozlov
L. Vithoontien
2
1
▾1.08
▴7.5
1
▾1.08
6263
1
▾1.08
7.6/10
S. Kozlov vs Y. Wu, Challenger - Newport, USA, 16:00, Finished. Match winner odds: 4 for S. Kozlov, 1.23 for Y. Wu. AI winner pick: Y. Wu, odds 1.23, confidence 5.7 out of 10. This tip lost. Predicted score: 4-6, 6-7. Best AI tip: O17.5, odds 1.36, confidence 6.9 out of 10. This tip won.
S. Kozlov
Y. Wu
(5)
S. Kozlov vs G. Johns, Challenger - Newport, USA, Qualifying, 21:35, Finished. Match winner odds: 1.4 for S. Kozlov, 2.7 for G. Johns. AI winner pick: G. Johns, odds 2.7, confidence 3.4 out of 10. This tip lost. Predicted score: 6-7, 4-6. Best AI tip: O20.5, odds 1.68, confidence 4.2 out of 10. This tip lost.
S. Kozlov
(5)
G. Johns
(12)
16:00
Finished
1600
S. Kozlov
Y. Wu
(5) 2
1
▾4
▴1.23
2
▴1.23
4667
O17.5
▾1.36
6.9/10
21:35
Finished
2135
S. Kozlov
(5)
G. Johns
(12) 2
0
▴1.4
▾2.7
2
▾2.7
6746
O20.5
▾1.68
4.2/10
Record by surface
Hard
25-19
Clay
6-5
Grass
3-0
Overall
34-24
Our AI on this player
30 correct of 53
From the matches in our database
About Stefan Kozlov
Stefan Kozlov is a 28-year-old right-handed professional tennis player, currently ranked world No. 271. That is below a career-high of world No. 103. The serve is the vulnerable side, at 3.3 double faults per match and 67.1% of first-serve points won. Breaking is the real weapon here: 28.7% of break chances get taken. The record is spread evenly across surfaces — Hard 25-19, Clay 6-5, Grass 3-0.
Right now the run is going well: 5 wins from the last 5 completed matches. The longest match we have on record ran to 33 games, against A. Mayo. More of the matches we cover came at Challenger Charlottesville USA than anywhere else — 5 of them. Predictions cover match winner and score, alongside serve, return and break-point statistics. Most recently seen in our data at Challenger Knoxville USA.
Serve & Return
First Serve %
59.8%
1st Serve Won
68.6%
2nd Serve Won
55.6%
Aces / Match
2.1
Double Faults / Match
2.4
Break Pts Saved
62.5%
Break Pts Converted
38%
Return Pts Won
44.3%
Service Hold %
63.4%
Total Pts Won
53.7%
Records
Last 12 months
1
Titles
1
Finals
1
Semis or better
26
Events played
Tournament Results
Champaign, USA
Challenger
Winner
Bogota (Los Lagartos), Colombia
Challenger
Quarter-Finals
Cleveland, USA
Challenger
Quarter-Finals
Metepec, Mexico
Challenger
Quarter-Finals
Nottingham, Great Britain
Challenger
Quarter-Finals
Brownsburg, USA
Challenger
Round of 16
Colombus, USA Men Singles
Challenger
Round of 16
Mexico City, Mexico
Challenger
Round of 16
Morelos, Mexico
Challenger
Round of 16
Newport, USA
Challenger
Round of 16
Oeiras, Portugal
Challenger
Round of 16
Savannah, USA
Challenger
Round of 16
Sioux Falls, USA
Challenger
Round of 16
Tiburon, USA
Challenger
Round of 32
Bloomfield Hills, USA
Challenger
Round of 32
Glasgow, Great Britain
Challenger
Round of 32
Morelia, Mexico
Challenger
Round of 32
Phoenix, USA
Challenger
Round of 32
Pozoblanco, Spain
Challenger
Round of 32
San Diego 2, USA,
Challenger
Round of 32
San Diego, USA
Challenger
Round of 32
San Luis, Mexico
Challenger
Round of 32
Tallahassee, USA
Challenger
Round of 32
Valencia, Spain
Challenger
Qualifying
Acapulco
ATP
Qualifying
Washington
ATP
Qualifying
Deepest runs first, not by date
Season by season
2026so far
27–23
Won-lost
50
Matches
5–8
Tiebreaks
2.7
Aces / Match
3.6
Double Faults / Match
First Serve %
60.1%
1st Serve Won
66.9%
2nd Serve Won
49.5%
Break points won
40.8%
Break Pts Saved
56.7%
2025
20–9
Won-lost
29
Matches
2–3
Tiebreaks
1.6
Aces / Match
1.4
Double Faults / Match
First Serve %
67.5%
1st Serve Won
60.4%
2nd Serve Won
47.1%
Break points won
51.6%
Break Pts Saved
59.2%
2024
37–19
Won-lost
56
Matches
11–5
Tiebreaks
1.9
Aces / Match
4.3
Double Faults / Match
First Serve %
65.4%
1st Serve Won
65.6%
2nd Serve Won
48.9%
Break points won
44.3%
Break Pts Saved
60.1%
2023
0–1
Won-lost
1
Matches
—
Tiebreaks
0
Aces / Match
0
Double Faults / Match
First Serve %
74.6%
1st Serve Won
60%
2nd Serve Won
35.3%
Break points won
100%
Break Pts Saved
69.2%
Season totals from the tour feed, singles only. The won-lost line is the tour's own count and can differ from the record under Predictions, which counts the matches we cover. A dash means the season holds nothing to measure that figure from.
Frequently asked questions
How accurate are the AI predictions for Stefan Kozlov?
+
Our model has graded 53 matches involving Stefan Kozlov and got 30 right — a hit rate of 56.6%. The 21 most recent are listed below, each with the pick we made and how it finished.
Who has Stefan Kozlov played most often?
+
Of the matches we cover, Stefan Kozlov has met Aidan Mayo most often — 3 times, with a 3-0 record.