John Wolf Jeffrey vs Stefan Kozlov Head to Head

John Wolf Jeffrey
John Wolf Jeffrey#218 · ATP
5–4
Stefan Kozlov#292 · ATP
Stefan Kozlov
Age
John Wolf Jeffrey: 27
Stefan Kozlov: 28
Height
John Wolf Jeffrey: 6'0" (183cm)
Stefan Kozlov: 6'0" (183cm)
Weight
John Wolf Jeffrey: 179lbs (81kg)
Stefan Kozlov: 174lbs (79kg)
Plays
John Wolf Jeffrey: Right-handed
Stefan Kozlov: Right-handed
Backhand
John Wolf Jeffrey: Two-handed
Stefan Kozlov: Two-handed
Turned pro
John Wolf Jeffrey: 2019
Stefan Kozlov: 2013
Avg total18.6
Last metJan 2025

Head-to-head counts meetings since 2011

John Wolf Jeffrey leads Stefan Kozlov 5–4 in their head-to-head. They last met at the 2025 Cleveland Challenger quarterfinal, which Jeffrey won 6-1 6-3. Their completed meetings average 18.6 games.

Signal breakdown· John Wolf Jeffrey first

  • Hard5–4

    Jeffrey leads · 9 meetings

  • Straight-sets wins5–3

    Jeffrey leads · 8 meetings

Every meeting· 9 on record · 8 tour-level

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