Stepan Koudelka has found the Tour difficult, recording 13–25 across 38 matches (34.2%). The numbers point to a player still building their Tour presence — a key area of opportunity going forward.
At Grand Slam level (Australian Open, Roland Garros, Wimbledon, US Open): Stepan Koudelka is 4–6 (40.0%) across 10 Grand Slam matches — below .500, though the elite draw depth makes that a notoriously difficult barrier.
By format — best-of-five: 4–11 (26.7%); best-of-three: 9–14 (39.1%). Markedly stronger in three-set formats; the win rate drops noticeably in five-setters, which has direct implications for Grand Slam performance.
Best season: 1970 — 6–9 (40.0%) from 15 matches. The best single-season display to date — a useful reference point as the career continues to develop.
