Jordi Burillo has found hard courts difficult, recording 15–39 across 54 matches (27.8%). 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): Jordi Burillo has struggled at Grand Slam level on hard: 2–8 (20.0%) 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): Jordi Burillo is 3–5 (37.5%) across 8 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: 1–3 (25.0%, 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: 2–8 (20.0%); best-of-three: 13–31 (29.5%). Markedly stronger in three-set formats; the win rate drops noticeably in five-setters, which has direct implications for Grand Slam performance on hard.

Best season: 1994 — 5–10 (33.3%) from 15 matches. The best single-season display to date — a useful reference point as the hard record continues to develop.