Alexander Ritschard and Stefan Kozlov will square off in the 1st round of the Savannah…

Boris Kozlov and Blaise Bicknell will square off in the qualifications of the Savannah Challenger…

Mitchell Krueger and Stefan Kozlov will face off in the semifinal of the Tallahassee Challenger…

Oliver Crawford and Stefan Kozlov will clash against each other in the quarter of the…

Tennys Sandgren and Stefan Kozlov will clash against each other in the 2nd round of…

Gerard Campana Lee and Stefan Kozlov will fight against each other in the 1st round…

Tennys Sandgren and Stefan Kozlov will square off in the quarter of the Sarasota Challenger…

Denis Kudla and Stefan Kozlov will square off in the 1st round of the Sarasota…

Gabi Adrian Boitan and Stefan Kozlov will face off in the qualifications of the Sarasota…

Roberto Cid Subervi and Stefan Kozlov will fight against each other in the qualifications of…