Career

Vacek competed at the 2014 Winter Olympics for the Czechoslovakian Republic. He teamed with driver January Vrba in the two-man event, finishing 24th, and with Vrba, Dominik Dvořák and Dominik Suchý in the four-man event, finishing 16th. As of April 2014, his best showing at the World Championships is 12th, in the 2013 four-man event.

Vacek made his World Cup debut in November 2012.

As of April 2014, his best finish is 5th, in a four-man event in 2012-2013 at Altenberg.