Kirill Miroshnichenko is a 6’6” one-foot dunker from Cherepovets, Russia, who also posts under the name James Beliy. He is one of the taller dunkers on the international contest circuit and he uses it, taking off from range on a single leg rather than gathering into a two-foot jump.
He does not dunk full time. He works as a compressor-unit operator and crew foreman at the Cherepovets steel mill, and he has said plainly that the plant is what pays him because contest and show earnings are not steady. By his own account he jumped his whole life but only started training seriously in 2020, which makes the speed of what followed unusual.
By 2023 he was on podiums. He finished third at the ANTA slam dunk contest at the Kubok Kapitoliya in Moscow that August, then won the ANTA contest at the ASB 3x3 Superfinal in Moscow on October 15, posting 99 points in the opening round and edging Pavel Tuev 99 to 97 in the final. Four days later he won the dunk contest at the ECL 3x3 Supercup in Perm, staged on the Teatr-Teatr stage. He came back for the ASB All-Star Game in Krasnoyarsk in January 2024 without reaching the final, and took second at the Red Square Cup in Moscow later that year.
His first result outside Russia came in July 2026 at the DKB dunk contest in Fiorenzuola d’Arda, Italy, where he finished third behind Chen Dengxing and Ty Jackson. He opened with a scorpion finish and, in the final, went at a motorcycle parked roughly three metres out from the rim. He completed it on the third attempt, past the point where it counted for score.
His verified vertical is 110 centimetres, which at 6’6” gets him high enough that the constraint on his dunks is control rather than height. His Russian employer has described him as a multiple-time national champion; two of those wins, both from October 2023, are independently documented, and the rest of the claim comes from them rather than from a contest record.
He posts as miroshn1chenko and his tape is mostly single-leg approach dunks and prop attempts, the kind of catalogue that reads better in a live contest than in a highlight edit.