Tomas Zib has found grass courts difficult, recording 6–10 across 16 matches (37.5%). 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): Tomas Zib has struggled at Grand Slam level on grass: 3–5 (37.5%) in 8 matches. The best-of-five format and elite fields make this the toughest benchmark on this surface.

By format on grass — best-of-five: 3–5 (37.5%); best-of-three: 3–5 (37.5%). Consistent regardless of format on grass — a sign of a well-rounded game that holds up as matches develop.

Best season: 2005 — 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.