He was silver medallist at the Copa Villa La Habana in 2011 and bronze medallist at the Löwe von Bonn in 2012, but narrowly missed the qualifications for the 2012 Summer Olympics in London. 42nd in FIE rankings before the 2013 World Fencing Championships, he created an upset by defeating successively Peter Joppich, Race Imboden, and Andrea Cassarà. He lost in the semi-finals by Russia's Artur Akhmatkhuzin and earned a bronze medal. Hertsyk took part in October in the 2013 World Combat Games, but was defeated in the first round by Imboden, who eventually took the silver medal.