Charles Owens has found grass courts difficult, recording 7–11 across 18 matches (38.9%). 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): a positive 6–4 (60.0%) across 10 matches — a player who generally rises to the occasion at the Slams on grass.

By format on grass — best-of-five: 6–5 (54.5%); best-of-three: 1–6 (14.3%). Significantly better in five-set matches — a strong physical profile on grass that tends to tell as matches and tournaments progress.

Best season: 1973 — 3–3 (50.0%) from 6 matches. The best single-season display to date — a useful reference point as the grass record continues to develop.