Ricardo Acuna has found hard courts difficult, recording 23–35 across 58 matches (39.7%). 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): Ricardo Acuna has struggled at Grand Slam level on hard: 3–7 (30.0%) in 10 matches. The best-of-five format and elite fields make this the toughest benchmark on this surface.

vs. Top 10 on hard: 0–6 (0.0%, 6 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: 7–7 (50.0%); best-of-three: 16–28 (36.4%). Significantly better in five-set matches — a strong physical profile on hard that tends to tell as matches and tournaments progress.

Best season: 1983 — 6–6 (50.0%) from 12 matches. The best single-season display to date — a useful reference point as the hard record continues to develop.