Julian Alonso has found hard courts difficult, recording 10–22 across 32 matches (31.3%). 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): Julian Alonso has struggled at Grand Slam level on hard: 2–5 (28.6%) in 7 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): Julian Alonso is 2–3 (40.0%) across 5 Masters matches — below .500 in the Tour's deepest fields. Lifting that record here would unlock better results across the whole hard swing.

vs. Top 10 on hard: 1–2 (33.3%, 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: 2–5 (28.6%); best-of-three: 8–17 (32.0%). Slightly stronger in three-set contests on hard, though the five-set record is still respectable.

Best season: 1997 — 5–3 (62.5%) from 8 matches. The best single-season display to date — a useful reference point as the hard record continues to develop.