Werner Eschauer has found clay courts difficult, recording 12–25 across 37 matches (32.4%). The numbers point to a surface that has not consistently suited the game — a key area of opportunity on the calendar. Werner Eschauer has reached 1 final without yet claiming a title on clay — one of the finest margins in tennis.

At Grand Slam level (Roland Garros): Werner Eschauer 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.

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. 1 quarterfinal.

vs. Top 10 on clay: 1–2 (33.3%, 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: 2–2 (50.0%); best-of-three: 10–23 (30.3%). Significantly better in five-set matches — a strong physical profile on clay that tends to tell as matches and tournaments progress.

Best season: 2007 — 6–7 (46.2%) from 13 matches. The best single-season display to date — a useful reference point as the clay record continues to develop.