Boris Kozlov

🇺🇸USA· Unranked· 26y· Right-handed· ATP

0–5 · last 104 weeks

Last match

L
Nick Hardt

vsNick Hardt#590

Savannah Challenger · Q1 · Clay · Apr 18, 2026

1-6 2-6Match details

Form & record· last 104 weeks

Fewer than 15 matches in the last 52 weeks — showing the last 104 weeks.

0–5
Record
0%
Win rate
Last 5

Hard 0–3Clay 0–1Grass 0–1

Record by season

SeasonTotalHardClayGrassIndoor
All
33–4940%
8–2029%
25–2748%
0–10%†
0–10%†
2026
0–10%†
—
0–10%†
—
—
2025
0–20%†
0–10%†
—
0–10%†
—
2024
1–713%
0–30%†
1–325%†
—
0–10%†
2018
18–1456%
3–633%
15–865%
—
—
2017
3–1121%
0–60%
3–538%
—
—

† fewer than 5 matches

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Surface
Level
Opponent rank
Window

Record · last 104 weeks

0–5
Record
0%
Win rate
17.2
Avg games
+6.8
Avg spread

Surface & Conditions

CategoryW–LWinSpreadGamesHold
HardOpp ~#7870–30%+6.018.0—(3)
ClayOpp ~#5900–10%+9.015.029%(1)
GrassOpp ~#7110–10%+7.017.050%(1)

Level & Opponents

CategoryW–LWinSpreadGamesHold
ChallengerOpp ~#6510–20%+8.016.039%(2)
ITFOpp ~#7870–30%+6.018.0—(3)
vs 100+0–50%+6.817.239%(5)
vs LeftiesOpp ~#7460–10%+7.017.0—(1)
vs RightiesOpp ~#7490–40%+6.817.339%(4)

Event & Format

CategoryW–LWinSpreadGamesHold
First match of eventOpp ~#7870–30%+6.018.0—(3)

Serve

MetricL5L10L104 Wks
Hold %39%39%39%
Break %12%12%12%

L104 Wks:Ace rate 0.7%1st-serve points won 57%Dominance ratio 0.48

5 matches with serve stats

Workload & retirements

SituationValue
Matches, last 7 days0
Matches, last 14 days0
Days since last match158
Retired, last 52 Wks0
Retired, career0

Averages exclude retirements and defaults