Luiz Mattar has a competitive hard court record of 86–71 across 157 matches (54.8%). The record shows a player capable of competing here, though there is clear room to push the win rate higher. 4 titles on hard: Sao Paulo, Guaruja — a record that reflects consistent ability to close out tournaments on this surface.

At Grand Slam level (Australian Open & US Open): Luiz Mattar is 7–10 (41.2%) across 17 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 hard (Indian Wells, Miami, Canada, Cincinnati, Shanghai, Paris): Luiz Mattar has struggled at Masters level on hard: 3–9 (25.0%) in 12 matches. Improving at this level is the clearest path to a stronger overall record on this surface.

8 finals reached on hard — won 4, lost 4 (solid 50% conversion) — consistently getting to finals and winning the majority is a hallmark of elite performers on hard. 11 semifinals. 15 quarterfinals.

vs. Top 10 on hard: 1–4 (20.0%, 5 matches). Top 10 opponents have represented a clear ceiling on hard; addressing that deficit is the single biggest lever for improving the overall record here.

By format on hard — best-of-five: 12–15 (44.4%); best-of-three: 74–56 (56.9%). Markedly stronger in three-set formats; the win rate drops noticeably in five-setters, which has direct implications for Grand Slam performance on hard.

Peak season: 1987 — 16–5 (76.2%) from 21 matches. That year captures the ceiling of what Luiz Mattar can do on hard when performing at their best and represents the standard to aim for.