Juan Carlos Ferrero has an impressive clay court record of 254–95 across 349 matches (72.8% — strong). A win rate of that calibre over 349 matches is a reliable indicator of genuine quality on this surface. With 13 titles, among the most prolific clay court champions in the Open Era: Mallorca, Estoril, Barcelona, Rome Masters and 8 more.

At Grand Slam level (Roland Garros): Juan Carlos Ferrero has been outstanding — 34–11 (75.6%) across 45 matches. Winning more than 7 in 10 Grand Slam matches on clay is the benchmark of an all-time great on this surface.

ATP Masters 1000 on clay (Monte Carlo, Madrid, Rome): Juan Carlos Ferrero is elite here — 62–25 (71.3%) across 87 matches. Sustaining that win rate in the Tour's deepest regular-week draws is a defining quality of the very best on this surface.

22 finals reached on clay — won 13, lost 9 (solid 59% conversion) — consistently getting to finals and winning the majority is a hallmark of elite performers on clay. 34 semifinals. 51 quarterfinals.

vs. Top 10 on clay: 16–19 (45.7%, 35 matches). Competitive against the elite, but still narrowly below .500 — closing that gap would directly elevate the overall clay court profile.

By format on clay — best-of-five: 52–18 (74.3%); best-of-three: 202–77 (72.4%). Consistent regardless of format on clay — a sign of a well-rounded game that holds up as matches develop.

Dominant season: 2001 — 34–5 (87.2%) from 39 matches. A campaign of 34 wins on clay in a single season is among the best single-season records the surface has seen — the clearest benchmark of what is achievable at peak level.