Chuprov has several significant achievements in chess competitions, primarily in Ukraine. He became the national under-20 champion in 2001, the Uzhhorod champion in 2005, and the champion of the Lviv region in 2006 and 2010.
He also participated in the Ukrainian Chess Championship’s premier league, where he secured 11th place in 2005. However, his performance advanced in the following years, and he cinched third place in 2006 and ninth place in 2007. In the championship of 2012, he impressively rank at 5th place.
Internationally, Chuprov represented Ukraine in the U16 Chess Olympiad in 1999 and 2000. His team won silver in 1999. He also participated in the European Championship and the World Championship.