Ion Tiriac 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.

5 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: 0–3 (0.0%, 3 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: 2–2 (50.0%); best-of-three: 19–30 (38.8%). Significantly better in five-set matches — a strong physical profile on hard that tends to tell as matches and tournaments progress.

Best season: 1973 — 4–5 (44.4%) from 9 matches. The best single-season display to date — a useful reference point as the hard record continues to develop.