Match log updated: 2026-05-28 18:14 UTC

Johannes Haerteis — ATP Match Log

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0 main-draw matches · 0–0 · — wins

Opponent	Score	Result	H2H	Match Data	Date ↑	Round	Tournament	Category	Surface
Stefan Kozlov #374	0-5 (ret.)	L	H2H	Match data	Jan 7, 2021*	Q1 Q	Delray Beach Open	ATP 250	Hard

1 qualifying match shown in the table; qualifying is excluded from main-draw summaries and leaderboards. Estimated from the tournament schedule where an exact match date is unavailable. Arrows show an edition's recorded category and documented modern equivalent; unresolved editions keep their recorded category. Mapping details.