Christophe Roger-Vasselin has found clay courts difficult, recording 52–65 across 117 matches (44.4%). The numbers point to a surface that has not consistently suited the game — a key area of opportunity on the calendar. Christophe Roger-Vasselin has reached 2 finals without yet claiming a title on clay — one of the finest margins in tennis.

At Grand Slam level (Roland Garros): Christophe Roger-Vasselin is 11–10 (52.4%) across 21 Grand Slam matches — below .500, though the elite draw depth at the Slams makes that a notoriously difficult barrier to crack.

2 finals reached on clay — 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. 4 semifinals. 9 quarterfinals.

vs. Top 10 on clay: 1–8 (11.1%, 9 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: 13–13 (50.0%); best-of-three: 39–52 (42.9%). Slightly better in five-set matches on clay — a positive sign for the Slams specifically.

Best season: 1977 — 7–5 (58.3%) from 12 matches. The best single-season display to date — a useful reference point as the clay record continues to develop.