At the 2019 World Championships, Sidakov first defeated Mexican representative, Victor Hernandez, by a technical fall, 10-0. He went on defeating Kamil Rybycki 8-0 and Mao Okui, Japanese Academic World medalist, in the quarter-finals by a score of 6-0. In the semi-finals, Sidakov faced four-time World Champion and former Olympic Champion, Jordan Burroughs – a rematch of the 2018 World Wrestling Championships quarter-finals – and won in the same fashion as he did in 2018, by a last-second step-out to score 4-3. In 2019, Sidakov once again defeated Burroughs with a last-second step-out and after a failed challenge for a score of 4-3.