John Paish has found clay courts difficult, recording 8–23 across 31 matches (25.8%). 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): John Paish has struggled at Grand Slam level on clay: 2–4 (33.3%) in 6 matches. The best-of-five format and elite fields make this the toughest benchmark on this surface.

By format on clay — best-of-five: 1–7 (12.5%); best-of-three: 7–16 (30.4%). 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: 1972 — 5–10 (33.3%) from 15 matches. The best single-season display to date — a useful reference point as the clay record continues to develop.