[1][2] He represented his native Belarus in three editions of the Olympic Games (2008, 2012 and 2016), and has won a total of seven bronze medals in major international competition, in both the long and short course European Championships.

[5] Few days later, he joined with Yauheni Lazuka, Viktar Vabishchevich, and two-time Olympian Stanislau Neviarouski for the men's 4 × 100 m medley relay.

[7][8] He was third heat of his 100 m backstroke, and won it with a new Belarusian record of 54.53, but narrowly missed a spot in the semifinals by one hundredth of a second (0.01) behind Olympic veteran Aristeidis Grigoriadis, placing eighteenth out of 43 swimmers in the prelims.

[12] Sankovich showed a tremendous improvement on the international scene at the 2014 European Championships in Berlin, Germany, overhauling the 52-second barrier in the 100 m butterfly to produce his own lifetime best (51.92) and collect his first ever bronze medal of the meet.

[13][14] The 2015 season brought a stellar feat for Sankovich, as he swam a career best and the world's third fastest time (51.57) in the 100 m butterfly at the Belarus Open, but could not beat his rival Yauhen Tsurkin, who was faster by 0.13 of a second, lowering the Belarusian record.