With a finish time of 42: 24.41 minutes, Shirobokov won the gold medal in the 10 km track for Russia starting at the 2015 U18 World Athletics Championships in Cali, Colombia . Two years later, Schirobokow was able to repeat this success with a time of 43: 21.29 minutes in the same discipline at the 2017 European Athletics Championships in Grosseto , Italy , where he competed under a neutral flag due to the suspension of the Russian Athletics Federation. Almost a month later, Schirobokow - still going neutral at the start - failed in the 20 km walk of the 2017 World Athletics Championships in London, England, with 1:18:55 hours just by the first-placed Colombian Éider Arévalo (1:18:53 hour) and had to be content with silver before the bronze medalist Caio Bonfim from Brazil (1:19:04 hour).