Francisco Comesana has found clay courts difficult, recording 15–21 across 36 matches (41.7%). 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): Francisco Comesana is 2–2 (50.0%) across 4 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): Francisco Comesana is 3–5 (37.5%) across 8 Masters matches — below .500 in the Tour's deepest fields. Lifting that record here would unlock better results across the whole clay swing.

By format on clay — best-of-five: 2–2 (50.0%); best-of-three: 13–19 (40.6%). Significantly better in five-set matches — a strong physical profile on clay that tends to tell as matches and tournaments progress.

Best season: 2025 — 11–9 (55.0%) from 20 matches. The best single-season display to date — a useful reference point as the clay record continues to develop.

Recent Form 2026: 4–8 (33.3%) on clay. Last 10: W L L L L W L W W L — mixed results, some inconsistency in the current period.