Oliver Gross has found clay courts difficult, recording 39–51 across 90 matches (43.3%). The numbers point to a surface that has not consistently suited the game — a key area of opportunity on the calendar. Oliver Gross has reached 1 final without yet claiming a title on clay — one of the finest margins in tennis.

At Grand Slam level (Roland Garros): Oliver Gross has yet to record a win on clay at this stage — 0–3 across 3 Grand Slam matches. Breaking through here would mark a significant step forward on this surface.

ATP Masters 1000 on clay (Monte Carlo, Madrid, Rome): a positive 8–6 (57.1%) across 14 matches — winning above .500 at this level, week in week out, is a genuine sign of quality on clay.

One final reached on clay, without converting it into a title. That final-round experience is valuable groundwork for going one step further next time. 1 semifinal. 7 quarterfinals.

vs. Top 10 on clay: 3–3 (50.0%, 6 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: 0–3 (0.0%); best-of-three: 39–48 (44.8%). 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: 1995 — 7–5 (58.3%) from 12 matches. The best single-season display to date — a useful reference point as the clay record continues to develop.