Career
His highest singles ranking was World Number. His best performance at a Grand Slam came at the 1994 United States Open where he defeated Alexander Vladimirovich Volkov, Andriy Medvedev, Todd Woodbridge, Javier Frana and Jaime Yzaga before losing to Michael Stich in the semifinal. In 1997, Novacek was suspended for three months for failing a drug test at the 1995 French Open.
He forfeited $185,765, but denied taking cocaine knowingly.
Nováček lived in Boca Raton, Florida, United States for 20 years, and then moved back to Czechoslovakian Republic. Karel and Maya Nováček married in 1990.
As of 2002, they had three children. In 2002, the Boca Raton News reported that their ten-year-old daughter Anika was a promising tennis player, winning several tournaments.
Singles (13 titles, 7 runners-up)
Doubles (6 titles, 8 runners-up).