Following the national championships, Ignatov participated in the 2021 Channel One Trophy, a televised team event organized in lieu of the European Championships. He was selected for the Red Machine team captained by Alina Zagitova. He placed second in the short program and third in the free skate, and the Red Machine team claimed the trophy. Subsequently he competed at the Russian Cup Final, which was widely assumed to be the deciding event for the second Russian men's berth at the 2021 World Championships in Stockholm. He placed eighth at the event.