Stefan Kozlov #374 def. Johannes Haerteis #305

5-0 (ret.)

The match ended when Johannes Haerteis retired.

Stefan Kozlov defeated Johannes Haerteis 5-0 RET after Johannes Haerteis retired in the 2021 Delray Beach Open first qualifying round on hard courts.

Match Information

Match Statistics

StatStefan KozlovJohannes Haerteis
Aces10
Double faults03
First serve %80.0%44.0%
First serve points won %75.0%25.0%
Second serve points won %75.0%0.0%
Break points saved %100.0%0.0%
Break points converted %100.0%0.0%
Service points won %75.0%11.0%
Return points won %89.0%25.0%
Total points won %79.0%21.0%

Player Comparison

FieldStefan KozlovJohannes Haerteis
Country USA GER
Birth dateFeb 1, 1998
Age22
Height183 cm196 cm
HandednessRight-HandedLeft-Handed
Backhand style
Ranking (entering)374305
Ranking points (entering)110153
Elo (entering)1,5141,465
Current career W-L9–26
Current career earnings$1,131,991$119,206
Pre-match H2H
Stefan Kozlov #374 0 0 Johannes Haerteis #305

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