Marcelo Filippini has found hard courts difficult, recording 28–59 across 87 matches (32.2%). The numbers point to a surface that has not consistently suited the game — a key area of opportunity on the calendar. Marcelo Filippini has reached 1 final without yet claiming a title on hard — one of the finest margins in tennis.

At Grand Slam level (Australian Open & US Open): Marcelo Filippini 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.

ATP Masters 1000 on hard (Indian Wells, Miami, Canada, Cincinnati, Shanghai, Paris): Marcelo Filippini has struggled at Masters level on hard: 2–9 (18.2%) in 11 matches. Improving at this level is the clearest path to a stronger overall record on this surface.

One final reached on hard, without converting it into a title. That final-round experience is valuable groundwork for going one step further next time. 1 semifinal. 5 quarterfinals.

vs. Top 10 on hard: 0–4 (0.0%, 4 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: 5–13 (27.8%); best-of-three: 23–46 (33.3%). Slightly stronger in three-set contests on hard, though the five-set record is still respectable.

Best season: 1989 — 4–3 (57.1%) from 7 matches. The best single-season display to date — a useful reference point as the hard record continues to develop.