Pere Riba has found clay courts difficult, recording 21–39 across 60 matches (35.0%). 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 (Roland Garros): Pere Riba has struggled at Grand Slam level on clay: 2–4 (33.3%) in 6 matches. The best-of-five format and elite fields make this the toughest benchmark on this surface.

ATP Masters 1000 on clay (Monte Carlo, Madrid, Rome): Pere Riba 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 clay swing.

By format on clay — best-of-five: 2–4 (33.3%); best-of-three: 19–35 (35.2%). Consistent regardless of format on clay — a sign of a well-rounded game that holds up as matches develop.

Best season: 2011 — 9–12 (42.9%) from 21 matches. The best single-season display to date — a useful reference point as the clay record continues to develop.