Rolf Norberg has found clay courts difficult, recording 15–31 across 46 matches (32.6%). 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 (Roland Garros): Rolf Norberg 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.

vs. Top 10 on clay: 1–4 (20.0%, 5 matches). Top 10 opponents have represented a clear ceiling on clay; addressing that deficit is the single biggest lever for improving the overall record here.

By format on clay — best-of-five: 3–4 (42.9%); best-of-three: 12–27 (30.8%). Significantly better in five-set matches — a strong physical profile on clay that tends to tell as matches and tournaments progress.

Best season: 1975 — 3–4 (42.9%) from 7 matches. The best single-season display to date — a useful reference point as the clay record continues to develop.