Jan Hajek has found the Tour difficult, recording 36–77 across 113 matches (31.9%). The numbers point to a player still building their Tour presence — a key area of opportunity going forward. Jan Hajek has reached 1 final without yet claiming a title — one of the finest margins in tennis.
At Grand Slam level (Australian Open, Roland Garros, Wimbledon, US Open): Jan Hajek has struggled at Grand Slam level: 5–15 (25.0%) in 20 matches. The best-of-five format and elite fields make this the toughest benchmark on Tour.
ATP Masters 1000 (Indian Wells, Miami, Monte Carlo, Madrid, Rome, Canada, Cincinnati, Shanghai, Paris): Jan Hajek has struggled at Masters level: 0–6 (0.0%) in 6 matches. Improving at this level is the clearest path to a stronger overall record.
One final reached, without converting it into a title. That final-round experience is valuable groundwork for going one step further next time. 1 semifinal. 4 quarterfinals.
vs. Top 10: 0–7 (0.0%, 7 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: 7–17 (29.2%); best-of-three: 29–60 (32.6%). Slightly stronger in three-set contests, though the five-set record is still respectable.
Best season: 2010 — 13–21 (38.2%) from 34 matches. The best single-season display to date — a useful reference point as the career continues to develop.