Ernie Ewert has found grass courts difficult, recording 10–16 across 26 matches (38.5%). 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): Ernie Ewert is 3–4 (42.9%) across 7 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: 3–4 (42.9%); best-of-three: 7–12 (36.8%). Slightly better in five-set matches on grass — a positive sign for the Slams specifically.

Best season: 1973 — 4–4 (50.0%) from 8 matches. The best single-season display to date — a useful reference point as the grass record continues to develop.