Thomaz Koch holds a solid hard court record of 53–39 across 92 matches (57.6%). A winning majority across 92 matches shows consistent ability to get results on hard. Claimed 3 titles on hard: Kingston, Caracas.

3 finals reached on hard — converted 3 into titles (outstanding 100% conversion rate). Converting finals at that rate separates champions from contenders. 7 semifinals. 13 quarterfinals.

vs. Top 10 on hard: 0–4 (0.0%, 4 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: 6–3 (66.7%); best-of-three: 47–35 (57.3%). Significantly better in five-set matches — a strong physical profile on hard that tends to tell as matches and tournaments progress.

Peak season: 1969 — 17–6 (73.9%) from 23 matches. That year captures the ceiling of what Thomaz Koch can do on hard when performing at their best and represents the standard to aim for.

Thomaz Koch put together an impressive 11-match winning streak on hard, highlighting the ability to maintain high performance across multiple tournament rounds and events.