Wanaro N'Godrella has found clay courts difficult, recording 24–46 across 70 matches (34.3%). 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): Wanaro N'Godrella has struggled at Grand Slam level on clay: 3–7 (30.0%) in 10 matches. The best-of-five format and elite fields make this the toughest benchmark on this surface.

By format on clay — best-of-five: 3–10 (23.1%); best-of-three: 21–36 (36.8%). Markedly stronger in three-set formats; the win rate drops noticeably in five-setters, which has direct implications for Grand Slam performance on clay.

Best season: 1975 — 4–5 (44.4%) from 9 matches. The best single-season display to date — a useful reference point as the clay record continues to develop.