Pancho Walthall has found grass courts difficult, recording 4–10 across 14 matches (28.6%). 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): Pancho Walthall has struggled at Grand Slam level on grass: 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 grass — best-of-five: 2–4 (33.3%); best-of-three: 2–6 (25.0%). Significantly better in five-set matches — a strong physical profile on grass that tends to tell as matches and tournaments progress.