Ranking trend
best #256Career record
15 matches6–9
Win–loss
22%
Hard · 2–7
50%
Clay · 1–1
75%
Grass · 3–1
2025
29 matches · 20–9 · 69.0%| Surface | M | W | Titles | Aces | DF | 1st serve | BP conv. | Winners | UE | TB |
|---|---|---|---|---|---|---|---|---|---|---|
| Hardcourt Indoor | 13 | 10 | 2 | 32 | 25 | 70% | 45% | — | — | 2–1 |
| Hardcourt Outdoor | 11 | 6 | — | 8 | 14 | 52% | 56% | — | — | 0–2 |
| Red Clay | 5 | 4 | — | 6 | 3 | 65% | 64% | — | — | — |
2024
56 matches · 37–19 · 66.1%| Surface | M | W | Titles | Aces | DF | 1st serve | BP conv. | Winners | UE | TB |
|---|---|---|---|---|---|---|---|---|---|---|
| Hardcourt Indoor | 9 | 6 | — | 25 | 33 | 69% | 47% | — | — | 3–0 |
| Hardcourt Outdoor | 22 | 14 | — | 38 | 79 | 65% | 45% | — | — | 3–2 |
| Red Clay | 25 | 17 | — | 45 | 130 | 65% | 43% | — | — | 5–3 |
2023
1 matches · 0–1 · 0.0%| Surface | M | W | Titles | Aces | DF | 1st serve | BP conv. | Winners | UE | TB |
|---|---|---|---|---|---|---|---|---|---|---|
| Hardcourt Outdoor | 1 | 0 | — | 0 | 0 | 60% | 100% | — | — | — |
M = matches · W = wins · DF = double faults · BP conv. = break points converted · UE = unforced errors · TB = tiebreaks won–lost.
FT
Washington
hard
Z. Svajda
(1)
S. Kozlov
(A)
7
5
6
1
2
0
FT
Bloomfield Hills, USA
hard
S. Kozlov
(LL)
A. Magadan
(Q)
6
3
1
6
6
7
1
2
FT
Bloomfield Hills, USA
hard
S. Kozlov
(1)
R. Pascual Ferra
(12)
4
6
4
6
0
2
FT
Bloomfield Hills, USA
hard
S. Kozlov
(1)
L. Vithoontien
4
6
6
1
6
2
2
1
FT
Pozoblanco, Spain
hard
Y. Zhou
(7)
S. Kozlov
6
3
3
6
6
4
2
1
FT
ATP Challenger Newport, USA Men Singles
grass
J. Fearnley
S. Kozlov
(Q)
3
6
6
3
6
2
2
1
FT
ATP Challenger Newport, USA Men Singles
grass
S. Kozlov
(Q)
Y. Wu
(5)
6
4
2
6
6
4
2
1
FT
ATP Challenger Newport, USA Men Singles
grass
S. Kozlov
(5)
G. Johns
(12)
6
4
6
2
2
0
FT
ATP Challenger Newport, USA Men Singles
grass
S. Kozlov
(5)
A. Mayo
7
6
5
7
6
3
2
1
FT
Valencia, Spain
clay
A. Sanchez Quilez
(A)
S. Kozlov
(8)
7
5
6
4
2
0
FT
Valencia, Spain
clay
M. Mansilla Diez
(WC)
S. Kozlov
(8)
2
6
1
6
0
2
FT
Acapulco
hard
P. Kypson
(1)
S. Kozlov
(A)
7
6
6
0
2
0
FT
Acapulco
hard
S. Kozlov
(WC)
N. Basavareddy
2
6
4
6
0
2
FT
Acapulco
hard
D. Vale
(A)
S. Kozlov
(WC)
1
6
4
6
0
2
—
Acapulco
hard
R. Hijikata
S. Kozlov
–
–
FT
Delray Beach
hard
S. Kozlov
(A)
Z. Svajda
(7)
3
6
0
6
0
2