Mariano Puerta holds a solid clay court record of 108–76 across 184 matches (58.7%). A winning majority across 184 matches shows consistent ability to get results on clay. Claimed 3 titles on clay: Palermo, Bogota, Casablanca.

At Grand Slam level (Roland Garros): a positive 12–6 (66.7%) across 18 matches — a player who generally rises to the occasion at the Slams on clay.

ATP Masters 1000 on clay (Monte Carlo, Madrid, Rome): a positive 11–10 (52.4%) across 21 matches — winning above .500 at this level, week in week out, is a genuine sign of quality on clay.

10 finals reached on clay — won 3, lost 7 (30% conversion) — capable of reaching finals consistently, with room to improve at the decisive moment. 15 semifinals. 21 quarterfinals.

vs. Top 10 on clay: 7–8 (46.7%, 15 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: 13–6 (68.4%); best-of-three: 95–70 (57.6%). Significantly better in five-set matches — a strong physical profile on clay that tends to tell as matches and tournaments progress.

Dominant season: 2000 — 38–13 (74.5%) from 51 matches. A campaign of 38 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.