Sam Querrey has found clay courts difficult, recording 52–67 across 119 matches (43.7%). The numbers point to a surface that has not consistently suited the game — a key area of opportunity on the calendar. Claimed 1 title on clay: Belgrade.

At Grand Slam level (Roland Garros): Sam Querrey has struggled at Grand Slam level on clay: 5–14 (26.3%) in 19 matches. The best-of-five format and elite fields make this the toughest benchmark on this surface.

ATP Masters 1000 on clay (Monte Carlo, Madrid, Rome): Sam Querrey is 11–17 (39.3%) across 28 Masters matches — below .500 in the Tour's deepest fields. Lifting that record here would unlock better results across the whole clay swing.

4 finals reached on clay — won 1, lost 3 (25% conversion) — capable of reaching finals consistently, with room to improve at the decisive moment. 4 semifinals. 10 quarterfinals.

vs. Top 10 on clay: 3–14 (17.6%, 17 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: 7–20 (25.9%); best-of-three: 45–47 (48.9%). 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: 2010 — 11–8 (57.9%) from 19 matches. The best single-season display to date — a useful reference point as the clay record continues to develop.