Julian Knowle has found grass courts difficult, recording 4–8 across 12 matches (33.3%). 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 (Wimbledon): Julian Knowle is 2–3 (40.0%) across 5 Grand Slam matches — below .500, though the elite draw depth at the Slams makes that a notoriously difficult barrier to crack.

By format on grass — best-of-five: 2–3 (40.0%); best-of-three: 2–5 (28.6%). Significantly better in five-set matches — a strong physical profile on grass that tends to tell as matches and tournaments progress.

Best season: 2002 — 3–4 (42.9%) from 7 matches. The best single-season display to date — a useful reference point as the grass record continues to develop.