Sergi Bruguera has an impressive clay court record of 296–135 across 431 matches (68.7% — strong). A win rate of that calibre over 431 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: Roland Garros, Gstaad, Prague, Estoril and 4 more.

At Grand Slam level (Roland Garros): Sergi Bruguera has been outstanding — 32–10 (76.2%) across 42 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): Sergi Bruguera is elite here — 54–25 (68.4%) across 79 matches. Sustaining that win rate in the Tour's deepest regular-week draws is a defining quality of the very best on this surface.

31 finals reached on clay — won 13, lost 18 (42% conversion) — capable of reaching finals consistently, with room to improve at the decisive moment. 40 semifinals. 61 quarterfinals.

vs. Top 10 on clay: 24–20 (54.5%, 44 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: 39–23 (62.9%); best-of-three: 257–112 (69.6%). Slightly stronger in three-set contests on clay, though the five-set record is still respectable.

Dominant season: 1994 — 35–6 (85.4%) from 41 matches. A campaign of 35 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.