Lionel Roux has found hard courts difficult, recording 54–70 across 124 matches (43.5%). The numbers point to a surface that has not consistently suited the game — a key area of opportunity on the calendar. Lionel Roux has reached 2 finals without yet claiming a title on hard — one of the finest margins in tennis.

At Grand Slam level (Australian Open & US Open): Lionel Roux is 7–8 (46.7%) across 15 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 hard (Indian Wells, Miami, Canada, Cincinnati, Shanghai, Paris): Lionel Roux has struggled at Masters level on hard: 2–9 (18.2%) in 11 matches. Improving at this level is the clearest path to a stronger overall record on this surface.

2 finals reached on hard — none converted into a title yet. Reaching 2 finals is a mark of real quality, but the gap between finalist and champion is one of the finest lines in the sport. 3 semifinals. 7 quarterfinals.

vs. Top 10 on hard: 0–12 (0.0%, 12 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: 7–8 (46.7%); best-of-three: 47–62 (43.1%). Slightly better in five-set matches on hard — a positive sign for the Slams specifically.

Best season: 1994 — 8–8 (50.0%) from 16 matches. The best single-season display to date — a useful reference point as the hard record continues to develop.