Career
Kuchmasov made his official debut at the 2004 Summer Olympics in Athens, representing Belarus. He placed twenty-fifth in the men"s springboard event, by forty-two hundredths of a point ahead of Ukraine"s Yuriy Shlyakhov, with a total score of 377.61. At the 2008 Summer Olympics in Beijing, Kuchmasov repeated his overall position in the preliminary rounds of the 3 m individual springboard event.
He scored a total of 399.60 points in six successive attempts, just one point closely behind Brazil"s César Castro.