Jan Kukal

Insights

Best run came at age 26 in 1969 French Open

His strongest Grand Slam result in the table is a round-of-32 finish at the 1969 French Open, achieved at age 26. That is one of only three R32 results in his 15-tournament career.

Clay and grass produced most of his deeper runs

Kukal reached at least the round of 64 in every French Open and Wimbledon appearance listed except the 1971 and 1973 French Opens, where he fell in R128. Across the data, his best results cluster on those two surfaces rather than at the US Open.

1970 was his busiest and most productive Slam year

He played three Grand Slams in 1970 and reached the round of 32 at the Australian Open, plus round of 64 at both the French Open and Wimbledon. No other year in the table combines as many appearances with that level of consistency.

Late-career return ended with another R32

After no listed Grand Slam results in 1974-75, he returned in 1976 and again reached R32 at the Australian Open at age 33. That matched his career-best round and closed the record with his final listed match.

Overall record stayed just below .500 across 28 matches

His Grand Slam line is 13-15 over 28 matches, a 46% win rate. The totals show a career with more losses than wins, but still enough success to produce three R32 finishes and seven R64 finishes.