Andrei Stoliarov has found clay courts difficult, recording 9–15 across 24 matches (37.5%). The numbers point to a surface that has not consistently suited the game — a key area of opportunity on the calendar.

At Grand Slam level (Roland Garros): Andrei Stoliarov is 2–2 (50.0%) across 4 Grand Slam matches — below .500, though the elite draw depth at the Slams makes that a notoriously difficult barrier to crack.

By format on clay — best-of-five: 3–2 (60.0%); best-of-three: 6–13 (31.6%). Significantly better in five-set matches — a strong physical profile on clay that tends to tell as matches and tournaments progress.

Best season: 2002 — 3–4 (42.9%) from 7 matches. The best single-season display to date — a useful reference point as the clay record continues to develop.