Ramkumar Ramanathan vs Stefan Kozlov Head to Head
- Age
- Ramkumar Ramanathan: 31
- Stefan Kozlov: 28
- Height
- Ramkumar Ramanathan: 6'2" (188cm)
- Stefan Kozlov: 6'0" (183cm)
- Weight
- Ramkumar Ramanathan: 179lbs (81kg)
- Stefan Kozlov: 174lbs (79kg)
- Plays
- Ramkumar Ramanathan: Right-handed
- Stefan Kozlov: Right-handed
- Backhand
- Ramkumar Ramanathan: Two-handed
- Stefan Kozlov: Two-handed
- Turned pro
- Ramkumar Ramanathan: 2009
- Stefan Kozlov: 2013
Avg total15.5
Last metAug 2025
Head-to-head counts meetings since 2011
Ramkumar Ramanathan leads Stefan Kozlov 3–2 in their head-to-head. They last met at the 2025 Chicago Challenger qualifying r2, which Kozlov won 1-6 7-6(4) 3-5.
Signal breakdown· Ramkumar Ramanathan first
- Hard3–1
Ramanathan leads · 4 meetings
- Deciding sets2–0
Ramanathan leads · 2 meetings
- Straight-sets wins2–1
Ramanathan leads · 3 meetings
Every meeting· 5 on record · 2 tour-level
- Kozlov won1-67-6(4)3-5ret.Chicago Challenger· Hard· Q2· Challenger· Aug 2025· Qualifying
- Ramanathan won6-1Truist Atlanta Open - Atlanta· Hard· Q2· ATP 250· Jul 2022· Qualifying
- Ramanathan won1-66-36-1Cary Challenger· Hard· SF· Challenger· Jul 2021
- Ramanathan won6-36-2Delray Beach Open - Delray Beach· Hard· Q1· ATP 250· Feb 2018· Qualifying
- Kozlov won1-62-6Savannah Challenger· Clay· 2nd round· Challenger· May 2017
Averages exclude retirements and defaults