[2][3][4] Shiraev's first international appearance took place in Subotica, where he competed at the 2015 Cadet European Championships in the 42 kilograms division.

[citation needed] In January 2020, he competed at the Ivan Yarygin Golden Grand Prix, where he went on to defeat multiple opponents on his way to the finale, most notably Nachyn Kuular ('17 U23 World Champion).

[3] In the finals, he avenged a loss from 2019 by upsetting former World and Olympic champion Soslan Ramonov and winning the championship.

[14] After opening up with two pins, he was dominantly defeated by returning National and World Champion David Baev in the quarterfinals.

[15] After competing at the WLR Pro League on 25 January 2021 and losing once again to David Baev,[16] Shiraev moved down to 65 kilos and placed third at the Russian National tournament.