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Deuce.

ATP TourUnited States

Stefan Kozlov

Age 28 · Right-handed · 6' 0" · Pro since 2013

Season
67–89
42.9% win rate
Career
9–26
25.7% win rate
Titles
0
Singles
Prize money
$1.1M
Career

Recent form

1 loss in a row

  1. WBeat Raphael Perot
  2. LLost to James Duckworth
  3. LLost to Alex Rybakov
  4. LLost to Nick Hardt
  5. WBeat Daniil Glinka
  6. WBeat Yibing Wu
  7. LLost to Jacob Fearnley
  8. LLost to Yi Zhou
  9. LLost to Alan Magadan
  10. LLost to Zachary Svajda
  11. WBeat Aidan Mayo
  12. LLost to Harry Wendelken

Oldest to newest. Hover a result for the opponent.

By surface

Strongest on clay

  • Hardmost played395840%
  • Clay181555%
  • Grass91341%
  • Indoor1325%

1635#588 on tour

Peak 1778 in 2025 · from 156 rated matches

  • Hard

    1647+11 vs overall

    97 matches

  • Clay

    1683+47 vs overall

    33 matches

  • Grass

    1676+41 vs overall

    22 matches

Computed from every completed ATP singles match since 2008, not from ranking points: beating a strong player is worth more than beating a weak one. A surface figure is this player’s overall rating plus an adjustment learned only from their matches on that surface.

Match results

11 matches· Main tour · 2017

  • LSam Querrey2017· ATP & WTA Western & Southern Open · Round 13-6, 0-6
  • LYuki Bhambri2017· ATP & WTA Citi Open · Round 15-7, 0-2ret.
  • LQuentin Halys2017· ATP BB&T Atlanta Open · Round 15-7, 6-7(7)
  • LAdrian Menendez-Maceiras2017· ATP Dell Technologies Hall of Fame Tennis Championships · Round 12-6, 6-7(5)
  • LMarin Cilic2017· ATP AEGON Championships · Round 20-6, 4-6
  • WSteve Johnson2017· ATP AEGON Championships · Round 13-6, 6-1, 6-1
  • LIvo Karlovic2017· ATP & WTA Topshelf Open · Round 24-6, 1-6
  • WDustin Brown2017· ATP & WTA Topshelf Open · Round 16-3, 3-6, 6-3
  • LDonald Young2017· ATP & WTA BNP Paribas Open · Round 15-7, 6-7(5)
  • LErnesto Escobedo2017· ATP & WTA Abierto Mexicano Telcel · Round 11-6, 6-2, 0-6
  • LSteve Johnson2017· ATP Delray Beach Open · Round 11-6, 4-6