Match log updated: 2026-08-30 18:41 UTC

A. O'Brien — ATP Match Log

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1 main-draw matches · 0–1 · 0.0% wins

Opponent	Score	Result	H2H	Match Data	Date ↑	Round	Tournament	Category	Surface
Alex Kim	6-3 2-6 4-6	L	—	Match data	Aug 15, 2001*	R64	Washington Open	ATP International Series Gold → modern equivalent ATP 500	Hard

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.