Dee ihe na-esote paragraf a - N'afọ 2012, Holivets banyere asọmpi European Championship na Stadskanaal na Netherlands. N'ebe ahụ, ọ gbara asọmpi na F12 shot put, na-edekọ ebe dị 15.52m nke nyere ya ọla edo mbụ ya. Holivets gbara asọmpi Paralympic mbụ ya na London na 2012
Ọ dị mma. Ọ gbara asọmpi n'ịgba egbe, n'asọmpi F11/F12. Ọ tụgharịrị ebe dị 16.25m, na-atụgharị gaa 991 isi, zuru ezu iji merie onye iro ya kacha nso, Vladimir Andryushchenko nke Russia n'ọnọdụ nke abụọ.