H2H data updated: 2026-07-16 19:16 UTC
Stefan Kozlov vs Martin Klizan H2H: 0-1
Martin Klizan holds a 1–0 lead over Stefan Kozlov in their ATP head-to-head. Across 1 main-draw meeting, Martin Klizan leads 1–0 on hard courts. Most recently, Martin Klizan won the 2014 Valencia third round 6-3 6-3.
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United States
Age 28
Right-Handed
183 cm / 6'0"
H2H
0
–
1
1 main draw meetings
Slovakia
Age 37
Left-Handed
191 cm / 6'3"
H2H Match Log
| Date | Tournament | Category | Round | Surface | Winner | Score | Loser | Match |
|---|---|---|---|---|---|---|---|---|
| Oct 23, 2014* | Valencia | ATP 250 | R32 | Hard | Martin Klizan | 6-3 6-3 | 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 |
| Martin Klizan | #831 | #24 | 1,445 | 1,979 | 128 | 146 | 46.7% | 0 | 0 | 0 | 2 | 4 | 6 |
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 | Martin Klizan | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 | 2007 | 1–1 | 50.0% | #395 | 1,524 | 0 | 0 |
| 18 | 2016 | 3–2 | 60.0% | #116 | 1,481 | 0 | 0 | — | — | — | — | — | — | — |
| 19 | 2017 | 2–9 | 18.2% | #167 | 1,549 | 0 | 0 | 2009 | 0–1 | 0.0% | #234 | 1,542 | 0 | 0 |
| 20 | 2018 | 0–1 | 0.0% | #316 | 1,528 | 0 | 0 | 2010 | 1–2 | 33.3% | #155 | 1,607 | 0 | 0 |
| 21 | — | — | — | — | — | — | — | 2011 | 0–2 | 0.0% | #117 | 1,600 | 0 | 0 |
| 22 | 2020 | 0–1 | 0.0% | #371 | 1,514 | 0 | 0 | 2012 | 16–13 | 55.2% | #30 | 1,795 | 0 | 1 |
| 23 | 2021 | 0–1 | 0.0% | #159 | 1,550 | 0 | 0 | 2013 | 12–24 | 33.3% | #108 | 1,690 | 0 | 1 |
| 24 | 2022 | 4–8 | 33.3% | #198 | 1,529 | 0 | 0 | 2014 | 23–16 | 59.0% | #34 | 1,899 | 0 | 2 |
| 25 | — | — | — | — | — | — | — | 2015 | 24–27 | 47.1% | #43 | 1,794 | 0 | 3 |
| 26 | — | — | — | — | — | — | — | 2016 | 14–15 | 48.3% | #35 | 1,750 | 0 | 5 |
| 27 | — | — | — | — | — | — | — | 2017 | 10–15 | 40.0% | #141 | 1,755 | 0 | 5 |
| 28 | — | — | — | — | — | — | — | 2018 | 18–9 | 66.7% | #41 | 1,917 | 0 | 6 |
| 29 | — | — | — | — | — | — | — | 2019 | 9–18 | 33.3% | #141 | 1,703 | 0 | 6 |
| 30 | — | — | — | — | — | — | — | 2020 | 0–2 | 0.0% | #151 | 1,649 | 0 | 6 |
| 35 | — | — | — | — | — | — | — | 2025 | 0–1 | 0.0% | #835 | 1,556 | 0 | 6 |