Robin Drysdale has found grass courts difficult, recording 9–29 across 38 matches (23.7%). 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 (Wimbledon): Robin Drysdale has struggled at Grand Slam level on grass: 5–12 (29.4%) in 17 matches. The best-of-five format and elite fields make this the toughest benchmark on this surface.

By format on grass — best-of-five: 5–12 (29.4%); best-of-three: 4–17 (19.0%). Significantly better in five-set matches — a strong physical profile on grass that tends to tell as matches and tournaments progress.

Best season: 1977 — 3–8 (27.3%) from 11 matches. The best single-season display to date — a useful reference point as the grass record continues to develop.