Quentin Halys has found hard courts difficult, recording 40–73 across 113 matches (35.4%). The numbers point to a surface that has not consistently suited the game — a key area of opportunity on the calendar.

At Grand Slam level (Australian Open & US Open): Quentin Halys has struggled at Grand Slam level on hard: 5–15 (25.0%) in 20 matches. The best-of-five format and elite fields make this the toughest benchmark on this surface.

ATP Masters 1000 on hard (Indian Wells, Miami, Canada, Cincinnati, Shanghai, Paris): a positive 13–13 (50.0%) across 26 matches — winning above .500 at this level, week in week out, is a genuine sign of quality on hard.

4 quarterfinals on hard, including one run to the semifinal — regularly reaching that stage is a solid baseline, with the next step being to break through to the final rounds more often.

vs. Top 10 on hard: 1–12 (7.7%, 13 matches). Top 10 opponents have represented a clear ceiling on hard; addressing that deficit is the single biggest lever for improving the overall record here.

By format on hard — best-of-five: 5–15 (25.0%); best-of-three: 35–58 (37.6%). Markedly stronger in three-set formats; the win rate drops noticeably in five-setters, which has direct implications for Grand Slam performance on hard.

Best season: 2026 — 13–14 (48.1%) from 27 matches. The best single-season display to date — a useful reference point as the hard record continues to develop.

Recent Form 2026: 13–14 (48.1%) on hard. Last 10: W L L W L L L W L W — mixed results, some inconsistency in the current period.