Jerzy Janowicz has found clay courts difficult, recording 14–25 across 39 matches (35.9%). 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): Jerzy Janowicz is 5–4 (55.6%) across 9 Grand Slam matches — below .500, though the elite draw depth at the Slams makes that a notoriously difficult barrier to crack.

ATP Masters 1000 on clay (Monte Carlo, Madrid, Rome): Jerzy Janowicz has struggled at Masters level on clay: 4–9 (30.8%) in 13 matches. Improving at this level is the clearest path to a stronger overall record on this surface.

vs. Top 10 on clay: 2–3 (40.0%, 5 matches). Competitive against the elite, but still narrowly below .500 — closing that gap would directly elevate the overall clay court profile.

By format on clay — best-of-five: 5–5 (50.0%); best-of-three: 9–20 (31.0%). Significantly better in five-set matches — a strong physical profile on clay that tends to tell as matches and tournaments progress.

Best season: 2013 — 7–6 (53.8%) from 13 matches. The best single-season display to date — a useful reference point as the clay record continues to develop.