Simon Youl has found clay courts difficult, recording 7–23 across 30 matches (23.3%). 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): Simon Youl has struggled at Grand Slam level on clay: 3–8 (27.3%) in 11 matches. The best-of-five format and elite fields make this the toughest benchmark on this surface.

By format on clay — best-of-five: 3–8 (27.3%); best-of-three: 4–15 (21.1%). Slightly better in five-set matches on clay — a positive sign for the Slams specifically.

Best season: 1985 — 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.