H2H data updated: 2026-07-18 07:16 UTC
Stefan Kozlov vs Sam Querrey H2H: 0-2
Sam Querrey holds a 2–0 lead over Stefan Kozlov in their ATP head-to-head. Across 2 main-draw meetings, Sam Querrey leads 1–0 on grass and 1–0 on hard courts. Most recently, Sam Querrey won the 2017 Cincinnati Masters second round 6-3 6-0.
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United States
Age 28
Right-Handed
183 cm / 6'0"
H2H
0
–
2
2 main draw meetings
USA
Age 38
Right-Handed
198 cm / 6'6"
H2H Match Log
| Date | Tournament | Category | Round | Surface | Winner | Score | Loser | Match |
|---|---|---|---|---|---|---|---|---|
| Aug 15, 2017* | Cincinnati Masters | Masters 1000 | R64 | Hard | Sam Querrey | 6-3 6-0 | Stefan Kozlov | Match data |
| Jun 12, 2016* | S Hertogenbosch | ATP 250 | QF | Grass | Sam Querrey | 6-3 6-0 | Stefan Kozlov | Match data |
* Estimated match date where the exact historical date is unavailable.
Career Comparison
| Player | Current | Peak | Pts | Elo | W | L | Win % | GS | 1000 | Finals | 500 | 250 | Titles |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Stefan Kozlov | #296 | #103 | 558 | 1,673 | 9 | 26 | 25.7% | 0 | 0 | 0 | 0 | 0 | 0 |
| Sam Querrey | #529 | #11 | 2,595 | 2,037 | 372 | 315 | 54.1% | 0 | 0 | 0 | 2 | 8 | 10 |
Career Progression by Age
Seasons are aligned by the age each player spent most of that calendar year. GS and Titles are cumulative career totals through that season.
| Age | Stefan Kozlov | Sam Querrey | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Yr | W-L | Win % | Rank | Elo | GS | Titles | Yr | W-L | Win % | Rank | Elo | GS | Titles | |
| 15 | 2013 | 0–1 | 0.0% | #1083 | 1,489 | 0 | 0 | — | — | — | — | — | — | — |
| 16 | 2014 | 0–1 | 0.0% | #467 | 1,453 | 0 | 0 | — | — | — | — | — | — | — |
| 17 | 2015 | 0–2 | 0.0% | #351 | 1,420 | 0 | 0 | — | — | — | — | — | — | — |
| 18 | 2016 | 3–2 | 60.0% | #116 | 1,481 | 0 | 0 | 2006 | 6–11 | 35.3% | #130 | 1,540 | 0 | 0 |
| 19 | 2017 | 2–9 | 18.2% | #167 | 1,549 | 0 | 0 | 2007 | 19–22 | 46.3% | #63 | 1,636 | 0 | 0 |
| 20 | 2018 | 0–1 | 0.0% | #316 | 1,528 | 0 | 0 | 2008 | 28–23 | 54.9% | #39 | 1,786 | 0 | 1 |
| 21 | — | — | — | — | — | — | — | 2009 | 39–22 | 63.9% | #25 | 1,899 | 0 | 2 |
| 22 | 2020 | 0–1 | 0.0% | #371 | 1,514 | 0 | 0 | 2010 | 35–21 | 62.5% | #18 | 1,872 | 0 | 6 |
| 23 | 2021 | 0–1 | 0.0% | #159 | 1,550 | 0 | 0 | 2011 | 12–13 | 48.0% | #93 | 1,816 | 0 | 6 |
| 24 | 2022 | 4–8 | 33.3% | #198 | 1,529 | 0 | 0 | 2012 | 37–24 | 60.7% | #22 | 2,005 | 0 | 7 |
| 25 | — | — | — | — | — | — | — | 2013 | 25–21 | 54.3% | #46 | 1,877 | 0 | 7 |
| 26 | — | — | — | — | — | — | — | 2014 | 26–20 | 56.5% | #35 | 1,893 | 0 | 7 |
| 27 | — | — | — | — | — | — | — | 2015 | 20–24 | 45.5% | #59 | 1,810 | 0 | 7 |
| 28 | — | — | — | — | — | — | — | 2016 | 28–23 | 54.9% | #31 | 1,798 | 0 | 8 |
| 29 | — | — | — | — | — | — | — | 2017 | 35–20 | 63.6% | #13 | 1,943 | 0 | 10 |
| 30 | — | — | — | — | — | — | — | 2018 | 21–22 | 48.8% | #51 | 1,822 | 0 | 10 |
| 31 | — | — | — | — | — | — | — | 2019 | 24–17 | 58.5% | #44 | 1,898 | 0 | 10 |
| 32 | — | — | — | — | — | — | — | 2020 | 3–6 | 33.3% | #53 | 1,817 | 0 | 10 |
| 33 | — | — | — | — | — | — | — | 2021 | 10–16 | 38.5% | #108 | 1,702 | 0 | 10 |
| 34 | — | — | — | — | — | — | — | 2022 | 4–10 | 28.6% | #329 | 1,649 | 0 | 10 |