Quentin Halys has found hard courts difficult, recording 37–68 across 105 matches (35.2%). 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: 4–14 (22.2%) in 18 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 12–12 (50.0%) across 24 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: 1–9 (10.0%, 10 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: 4–14 (22.2%); best-of-three: 33–54 (37.9%). 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 — 10–9 (52.6%) from 19 matches. The best single-season display to date — a useful reference point as the hard record continues to develop.

Recent Form 2026: 10–9 (52.6%) on hard. Last 10: L L L W W W W L W L — mixed results, some inconsistency in the current period.