Santiago Ventura has a competitive clay court record of 37–41 across 78 matches (47.4%). The record shows a player capable of competing here, though there is clear room to push the win rate higher. Claimed 1 title on clay: Casablanca.

At Grand Slam level (Roland Garros): Santiago Ventura has yet to record a win on clay at this stage — 0–4 across 4 Grand Slam matches. Breaking through here would mark a significant step forward on this surface.

One final reached on clay, converted into a title — a perfect finals record on this surface. 4 semifinals. 7 quarterfinals.

By format on clay — best-of-five: 0–4 (0.0%); best-of-three: 37–37 (50.0%). Markedly stronger in three-set formats; the win rate drops noticeably in five-setters, which has direct implications for Grand Slam performance on clay.

Best season: 2004 — 8–2 (80.0%) from 10 matches. The best single-season display to date — a useful reference point as the clay record continues to develop.