Competing with Oleksiy Prygorov, he won the bronze medal in the 3 m spring synchro at the 2008 Summer Olympics in Beijing.

He is twice silver medalist of the World Championships in 1m competition and once bronze medalist in 3m synchro event which was his greatest success in a synchro competition since Olympic bronze.

Kvasha is one of the most famous and popular modern Ukrainian athletes.

He was also thrice awarded The Best Sportsman of the Month by the NOC of Ukraine: in March 2008, April 2009, and June 2017.

This biographical article relating to Ukrainian diving is a stub.