Haroon Ismail has found clay courts difficult, recording 16–32 across 48 matches (33.3%). The numbers point to a surface that has not consistently suited the game — a key area of opportunity on the calendar. Haroon Ismail has reached 1 final without yet claiming a title on clay — one of the finest margins in tennis.

At Grand Slam level (Roland Garros): Haroon Ismail is 3–3 (50.0%) across 6 Grand Slam matches — below .500, though the elite draw depth at the Slams makes that a notoriously difficult barrier to crack.

One final reached on clay, without converting it into a title. That final-round experience is valuable groundwork for going one step further next time. 1 semifinal. 2 quarterfinals.

By format on clay — best-of-five: 5–10 (33.3%); best-of-three: 11–22 (33.3%). Consistent regardless of format on clay — a sign of a well-rounded game that holds up as matches develop.

Best season: 1980 — 5–4 (55.6%) from 9 matches. The best single-season display to date — a useful reference point as the clay record continues to develop.