Carlos Kirmayr has a competitive hard court record of 37–34 across 71 matches (52.1%). The record shows a player capable of competing here, though there is clear room to push the win rate higher. Claimed 1 title on hard: Guaruja.

At Grand Slam level (Australian Open & US Open): 1–2 across just 3 matches — still very early days at this level on hard.

2 finals reached on hard — won 1, lost 1 (solid 50% conversion) — consistently getting to finals and winning the majority is a hallmark of elite performers on hard. 4 semifinals. 8 quarterfinals.

By format on hard — best-of-five: 1–4 (20.0%); best-of-three: 36–30 (54.5%). Markedly stronger in three-set formats; the win rate drops noticeably in five-setters, which has direct implications for Grand Slam performance on hard.

Best season: 1980 — 5–2 (71.4%) from 7 matches. The best single-season display to date — a useful reference point as the hard record continues to develop.