Nuno Marques has found hard courts difficult, recording 15–22 across 37 matches (40.5%). 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): Nuno Marques has struggled at Grand Slam level on hard: 3–6 (33.3%) in 9 matches. The best-of-five format and elite fields make this the toughest benchmark on this surface.

By format on hard — best-of-five: 5–6 (45.5%); best-of-three: 10–16 (38.5%). Slightly better in five-set matches on hard — a positive sign for the Slams specifically.

Best season: 1990 — 4–1 (80.0%) from 5 matches. The best single-season display to date — a useful reference point as the hard record continues to develop.