Polishchuk qualified for the Ukrainian squad in the men's team pursuit at the 2008 Summer Olympics in Beijing based on the nation's selection process from the UCI Track World Rankings. He delivered the Ukrainian foursome of Volodymyr Dyudya, Lyubomyr Polatayko, and Vitaliy Shchedov a ninth-place time of 4:07.883 in the prelims, narrowly missing out the match round by more than a second.