Quentin Halys vs Facundo Diaz Acosta Prediction U.S. Open - New York · Aug 31, 2026

Analysis

No recent form or head-to-head data was supplied for this first-round meeting, so the read has to come from style and surface fit. Quentin Halys is a power-based hard-court player whose game is built around a heavy first serve and a flat forehand, and the quick New York courts reward exactly that profile with cheap points and short rallies. Facundo Diaz Acosta is a left-hander whose best tennis has come on slower, higher-bouncing surfaces where he can use spin, angles and defensive length; on a fast hard court those tools lose some of their bite. The lefty serve and the awkward forehand-to-backhand diagonal still make him a genuinely uncomfortable opponent, and Halys has historically been streaky enough that a dip in his serving percentage can hand away a set. Best-of-five also gives the Argentine time to solve the pattern if the first two sets are tight. That combination points to Halys advancing, but not without dropping a set along the way.