Joao Fonseca holds a solid clay court record of 19–14 across 33 matches (57.6%). A winning majority across 33 matches shows consistent ability to get results on clay. Claimed 1 title on clay: Buenos Aires.

At Grand Slam level (Roland Garros): 2–1 across just 3 matches — still very early days at this level on clay.

ATP Masters 1000 on clay (Monte Carlo, Madrid, Rome): a positive 5–4 (55.6%) across 9 matches — winning above .500 at this level, week in week out, is a genuine sign of quality on clay.

One final reached on clay, converted into a title — a perfect finals record on this surface. 1 semifinal. 5 quarterfinals.

vs. Top 10 on clay: 0–3 (0.0%, 3 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: 2–1 (66.7%); best-of-three: 17–13 (56.7%). Significantly better in five-set matches — a strong physical profile on clay that tends to tell as matches and tournaments progress.

Best season: 2025 — 8–4 (66.7%) from 12 matches. The best single-season display to date — a useful reference point as the clay record continues to develop.

Joao Fonseca recorded a notable 5-match winning streak on clay — a run that demonstrates consistency across consecutive draws on this surface.

Recent Form 2026: 6–4 (60.0%) on clay. Last 10: L W L W W W L W W L — positive form, wins outweighing losses in the latest stretch.