Mario Ancic holds a solid clay court record of 35–26 across 61 matches (57.4%). A winning majority across 61 matches shows consistent ability to get results on clay.

At Grand Slam level (Roland Garros): a positive 11–5 (68.8%) across 16 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 12–8 (60.0%) across 20 matches — winning above .500 at this level, week in week out, is a genuine sign of quality on clay.

5 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: 3–10 (23.1%, 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: 12–7 (63.2%); best-of-three: 23–19 (54.8%). Significantly better in five-set matches — a strong physical profile on clay that tends to tell as matches and tournaments progress.

Best season: 2006 — 14–4 (77.8%) from 18 matches. The best single-season display to date — a useful reference point as the clay record continues to develop.