Guillermo Coria has an impressive career record of 218–114 across 332 matches (65.7% — strong). A win rate of that calibre over 332 matches is a reliable indicator of genuine quality. 8 titles: Vina del Mar, Hamburg Masters, Stuttgart, Kitzbuhel, Sopot, Buenos Aires, Monte Carlo Masters, Umag — a record that reflects consistent ability to close out tournaments.
At Grand Slam level (Australian Open, Roland Garros, Wimbledon, US Open): a positive 40–20 (66.7%) across 60 matches — a player who generally rises to the occasion at the Slams.
ATP Masters 1000 (Indian Wells, Miami, Monte Carlo, Madrid, Rome, Canada, Cincinnati, Shanghai, Paris): Guillermo Coria is elite here — 72–31 (69.9%) across 103 matches. Sustaining that win rate in the Tour's deepest regular-week draws is a defining quality of the very best.
20 finals reached — won 8, lost 12 (40% conversion) — capable of reaching finals consistently, with room to improve at the decisive moment. 26 semifinals. 37 quarterfinals.
vs. Top 10: 10–29 (25.6%, 39 matches). Top 10 opponents have represented a clear ceiling; addressing that deficit is the single biggest lever for improving the overall record.
By format — best-of-five: 46–27 (63.0%); best-of-three: 172–87 (66.4%). Slightly stronger in three-set contests, though the five-set record is still respectable.
Dominant season: 2003 — 60–16 (78.9%) from 76 matches. That year represents a level of dominance that sets the ceiling for what Guillermo Coria can produce.