Thomaz Koch holds a solid career record of 228–169 across 397 matches (57.4%). A winning majority across 397 matches shows consistent ability to get results on Tour. 6 titles: Kingston, Caracas, Mexico City, Washington, Manchester — a record that reflects consistent ability to close out tournaments.
At Grand Slam level (Australian Open, Roland Garros, Wimbledon, US Open): Thomaz Koch is 16–21 (43.2%) across 37 Grand Slam matches — below .500, though the elite draw depth makes that a notoriously difficult barrier.
11 finals reached — won 6, lost 5 (solid 55% conversion) — consistently getting to finals and winning the majority is a hallmark of elite performers. 28 semifinals. 50 quarterfinals.
vs. Top 10: 2–20 (9.1%, 22 matches). Top 10 opponents have represented a clear ceiling; addressing that deficit is the single biggest lever for improving the overall record.
By format — best-of-five: 68–50 (57.6%); best-of-three: 160–115 (58.2%). Consistent regardless of format — a sign of a well-rounded game that holds up as matches develop.
Dominant season: 1969 — 49–20 (71.0%) from 69 matches. That year represents a level of dominance that sets the ceiling for what Thomaz Koch can produce.