Site data updated: 2026-05-28 18:14 UTC

Stefan Kozlov #374 def. Johannes Haerteis #305

5-0 (ret.)

Match Information

Date Jan 7, 2021*
Tournament Delray Beach
Category ATP 250
Surface Hard
RoundQ1
Winner Stefan Kozlov
Score5-0 (ret.)
Loser Johannes Haerteis
Duration16m
StatStefan KozlovJohannes Haerteis
Aces10
Double faults03
First serve %8044
First serve points won %7525
Second serve points won %750
Break points saved %1000
Break points converted %1000
Service points won %7511
Return points won %8925
Total points won %7921

Pre-match Comparison

FieldStefan KozlovJohannes Haerteis
Country USA GER
Birth dateFeb 1, 1998
Age22
Height183196
HandednessRight-HandedLeft-Handed
Backhand style
Ranking (entering)374305
Ranking points (entering)110153
Elo (entering)1,5141,465
Career W-L9–26
Career earnings$1,121,946$119,206
Pre-match H2H
Stefan Kozlov 0 0 Johannes Haerteis

No prior-path match data is available for this tournament stage.