Jiri Hrebec has found hard courts difficult, recording 24–31 across 55 matches (43.6%). The numbers point to a surface that has not consistently suited the game — a key area of opportunity on the calendar. Claimed 1 title on hard: Basel.

At Grand Slam level (Australian Open & US Open): 1–1 across just 2 matches — still very early days at this level on hard.

2 finals reached on hard — won 1, lost 1 (solid 50% conversion) — consistently getting to finals and winning the majority is a hallmark of elite performers on hard. 2 semifinals. 7 quarterfinals.

vs. Top 10 on hard: 2–5 (28.6%, 7 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: 3–2 (60.0%); best-of-three: 21–29 (42.0%). Significantly better in five-set matches — a strong physical profile on hard that tends to tell as matches and tournaments progress.

Best season: 1975 — 8–2 (80.0%) from 10 matches. The best single-season display to date — a useful reference point as the hard record continues to develop.