Marcos Giron has found clay courts difficult, recording 20–34 across 54 matches (37.0%). 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): Marcos Giron is 5–6 (45.5%) across 11 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): Marcos Giron is 9–13 (40.9%) across 22 Masters matches — below .500 in the Tour's deepest fields. Lifting that record here would unlock better results across the whole clay swing.

vs. Top 10 on clay: 1–6 (14.3%, 7 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: 5–6 (45.5%); best-of-three: 15–28 (34.9%). Significantly better in five-set matches — a strong physical profile on clay that tends to tell as matches and tournaments progress.

Best season: 2023 — 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.

Recent Form 2026: 0–3 (0.0%) on clay. Last 3: L L L