Thierry Ascione has found hard courts difficult, recording 11–23 across 34 matches (32.4%). 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): Thierry Ascione has struggled at Grand Slam level on hard: 1–5 (16.7%) in 6 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): Thierry Ascione is 2–3 (40.0%) across 5 Masters matches — below .500 in the Tour's deepest fields. Lifting that record here would unlock better results across the whole hard swing.

By format on hard — best-of-five: 1–5 (16.7%); best-of-three: 10–18 (35.7%). 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: 2004 — 6–8 (42.9%) from 14 matches. The best single-season display to date — a useful reference point as the hard record continues to develop.