Vdovin took up athletics at the age of 10 and later joined the Specialised Children's Youth Sport School of Olympic Reserve in Zarya. He was classified as a T37 athlete, due to limited motor function resulting from his cerebral palsy. In 2013 he was selected to represent Russia at the IPC World Championships in Lyon. There he entered three events, the 100m, 200m and the 4 × 100 m - T35-38. He won gold in all three and set a world record in both the 100m (11.48) and the 200m (22.77). His winning time in the 200m saw him become the first man to run under 23 seconds in his classification. In the T35-38 100m relay, he was joined by Gocha Khugaev, Roman Kapranov and Evgenii Shvetcov, beating South Africa (silver) and Ukraine (bronze) in the final.