Maximilian Marterer has found clay courts difficult, recording 19–32 across 51 matches (37.3%). 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): Maximilian Marterer is 4–5 (44.4%) across 9 Grand Slam matches — below .500, though the elite draw depth at the Slams makes that a notoriously difficult barrier to crack.

vs. Top 10 on clay: 0–3 (0.0%, 3 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: 4–5 (44.4%); best-of-three: 15–27 (35.7%). Significantly better in five-set matches — a strong physical profile on clay that tends to tell as matches and tournaments progress.

Best season: 2018 — 11–8 (57.9%) from 19 matches. The best single-season display to date — a useful reference point as the clay record continues to develop.