Patricio Cornejo has a competitive clay court record of 106–122 across 228 matches (46.5%). The record shows a player capable of competing here, though there is clear room to push the win rate higher.

At Grand Slam level (Roland Garros): Patricio Cornejo is 9–11 (45.0%) across 20 Grand Slam matches — below .500, though the elite draw depth at the Slams makes that a notoriously difficult barrier to crack.

10 quarterfinals on clay, including one run to the semifinal — regularly reaching that stage is a solid baseline, with the next step being to break through to the final rounds more often.

vs. Top 10 on clay: 1–12 (7.7%, 13 matches). Top 10 opponents have represented a clear ceiling on clay; addressing that deficit is the single biggest lever for improving the overall record here.

By format on clay — best-of-five: 22–29 (43.1%); best-of-three: 84–93 (47.5%). Slightly stronger in three-set contests on clay, though the five-set record is still respectable.

Best season: 1969 — 8–4 (66.7%) from 12 matches. The best single-season display to date — a useful reference point as the clay record continues to develop.