Haroon Rahim has found grass courts difficult, recording 16–23 across 39 matches (41.0%). 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): Haroon Rahim has struggled at Grand Slam level on grass: 4–9 (30.8%) in 13 matches. The best-of-five format and elite fields make this the toughest benchmark on this surface.

vs. Top 10 on grass: 0–3 (0.0%, 3 matches). Top 10 opponents have represented a clear ceiling on grass; addressing that deficit is the single biggest lever for improving the overall record here.

By format on grass — best-of-five: 4–10 (28.6%); best-of-three: 12–13 (48.0%). Markedly stronger in three-set formats; the win rate drops noticeably in five-setters, which has direct implications for Grand Slam performance on grass.

Best season: 1971 — 4–3 (57.1%) from 7 matches. The best single-season display to date — a useful reference point as the grass record continues to develop.