H2H data updated: 2026-07-18 07:16 UTC
Quentin Halys vs Stefan Kozlov H2H: 1-0
Quentin Halys holds a 1–0 lead over Stefan Kozlov in their ATP head-to-head. Across 1 main-draw meeting, Quentin Halys leads 1–0 on hard courts. Most recently, Quentin Halys won the 2017 Atlanta third round 7-5 7-6(7).
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France
Age 29
Right-Handed
191 cm / 6'3"
H2H
1
–
0
1 main draw meetings
United States
Age 28
Right-Handed
183 cm / 6'0"
H2H Match Log
| Date | Tournament | Category | Round | Surface | Winner | Score | Loser | Match |
|---|---|---|---|---|---|---|---|---|
| Jul 27, 2017* | Atlanta | ATP 250 | R32 | Hard | Quentin Halys | 7-5 7-6(7) | 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Quentin Halys | #90 | #46 | 1,174 | 1,815 | 60 | 99 | 37.7% | 0 | 0 | 0 | 0 | 0 | 0 |
| Stefan Kozlov | #296 | #103 | 558 | 1,673 | 9 | 26 | 25.7% | 0 | 0 | 0 | 0 | 0 | 0 |
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 | Quentin Halys | Stefan Kozlov | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 | 2015 | 0–2 | 0.0% | #205 | 1,520 | 0 | 0 | 2016 | 3–2 | 60.0% | #116 | 1,481 | 0 | 0 |
| 19 | 2016 | 3–6 | 33.3% | #153 | 1,560 | 0 | 0 | 2017 | 2–9 | 18.2% | #167 | 1,549 | 0 | 0 |
| 20 | 2017 | 2–6 | 25.0% | #129 | 1,563 | 0 | 0 | 2018 | 0–1 | 0.0% | #316 | 1,528 | 0 | 0 |
| 21 | 2018 | 1–4 | 20.0% | #128 | 1,552 | 0 | 0 | — | — | — | — | — | — | — |
| 22 | 2019 | 0–1 | 0.0% | #220 | 1,515 | 0 | 0 | 2020 | 0–1 | 0.0% | #371 | 1,514 | 0 | 0 |
| 23 | 2020 | 0–2 | 0.0% | #203 | 1,529 | 0 | 0 | 2021 | 0–1 | 0.0% | #159 | 1,550 | 0 | 0 |
| 24 | 2021 | 0–3 | 0.0% | #151 | 1,556 | 0 | 0 | 2022 | 4–8 | 33.3% | #198 | 1,529 | 0 | 0 |
| 25 | 2022 | 3–11 | 21.4% | #64 | 1,617 | 0 | 0 | — | — | — | — | — | — | — |
| 26 | 2023 | 15–18 | 45.5% | #100 | 1,677 | 0 | 0 | — | — | — | — | — | — | — |
| 27 | 2024 | 10–9 | 52.6% | #72 | 1,792 | 0 | 0 | — | — | — | — | — | — | — |
| 28 | 2025 | 12–23 | 34.3% | #91 | 1,628 | 0 | 0 | — | — | — | — | — | — | — |
| 29 | 2026 | 14–14 | 50.0% | #90 | 1,716 | 0 | 0 | — | — | — | — | — | — | — |