Complex sentence: Tomáš Mrázek (born August 24,1982, in Brno) is a professional Czech rock climber with an outstanding track record in climbing competitions in lead: he won two World Championships, in 2003 and 2005, and one Lead World Cup, in 2004.
Split into simpler sentences: Tomáš Mrázek (born August 24,1982, in Brno) is a professional Czech rock climber specializing in lead climbing competitions. He won two World Championships, in 2003 and 2005, and one Lead World Cup, in 2004.