Lars Jonsson has found hard courts difficult, recording 29–42 across 71 matches (40.8%). The numbers point to a surface that has not consistently suited the game — a key area of opportunity on the calendar. Lars Jonsson has reached 1 final without yet claiming a title on hard — one of the finest margins in tennis.

At Grand Slam level (Australian Open & US Open): Lars Jonsson has struggled at Grand Slam level on hard: 7–11 (38.9%) in 18 matches. The best-of-five format and elite fields make this the toughest benchmark on this surface.

One final reached on hard, without converting it into a title. That final-round experience is valuable groundwork for going one step further next time. 1 semifinal. 5 quarterfinals.

vs. Top 10 on hard: 0–5 (0.0%, 5 matches). Top 10 opponents have represented a clear ceiling on hard; addressing that deficit is the single biggest lever for improving the overall record here.

By format on hard — best-of-five: 7–12 (36.8%); best-of-three: 22–30 (42.3%). Slightly stronger in three-set contests on hard, though the five-set record is still respectable.

Best season: 1991 — 8–4 (66.7%) from 12 matches. The best single-season display to date — a useful reference point as the hard record continues to develop.