Stefan Koubek

Insights

Peak came at Roland Garros in 1999

His best Grand Slam result was a quarterfinal-equivalent run to the R16 at the 1999 French Open, achieved at age 22. That stands out as his only result beyond the third round across 38 tournaments.

Most of his Slam career clustered in the first two rounds

Across 69 matches, he went 31-38, and his listed best results are just one QF, one R16, and six R32 finishes. The rest of his record is dominated by R64 and R128 exits, showing limited deep-run frequency.

2000 was his strongest all-around Slam season

In 2000 he reached at least the R64 at all four majors, including R32 at the Australian Open and R64 at the other three. That was his only season with four completed Slam appearances all ending inside the top 64 or better.

Australian Open was his most productive major

His Australian Open results include his only quarterfinal run, plus R32 in 2000 and 2008, R64 in 2001 and 2009, and R128 in 1999, 2004, and 2007. No other Slam shows that many finishes at R64 or better.

His final Slam stretch faded sharply after 2007

From 2007 to 2010, his results were R32, R128, R64, R128, R32, and R128 across six appearances. That sequence includes only two results inside the top 32 and ends with back-to-back first-round exits in 2009 and 2010 Wimbledon.