The doubles specialist could in his career win 39 titles in doubles competitions on the ATP Tour and reached 20 more times a playoff. The biggest success was winning the 2006 U.S. Open with partner Leander Paes, with whom he already in the spring of the same year could advance to the finals of the Australian Open. Likewise, he could reach in 1993 with compatriot Daniel Vacek the final of the U.S. Open. In individual succeeded dam in five finals to collect, but all of them were lost.
In 2006, he was able to reach the final of the mixed competition of the U.S. Open on the side of his partner Kveta Peschke, but was defeated here in two sets Martina Navratilova and Bob Bryan.
His highest placing in the individual competition of the tennis world ranking he reached rank 42 in August 1997. 's Doubles classification, he finished end of April 2007 Rank 5, its highest-ever listing.
In November 2010, the dam announced his retirement from professional tennis.