[1] Despite being the only male synchronized swimmer in the national team, Maltsev continued to pursue his career even with attempts to divert his attention to water polo and diving.

[2] In 2014, FINA officially approved of adding mixed-gender events in synchronized swimming and diving under its banner after a vote at the Extraordinary Congress in Doha (Qatar).

In November 2016, the Maltsev/Kalancha pair performed the newly composed Swan Lake at the 11th FINA Synchronized Swimming World Trophy in Yangzhou (China) and won the title in 92.6000 points.

[5] The next year, they took part in the 2017 World Aquatics Championships in Budapest, and won gold and silver in the mixed free and technical routines respectively.

Their duet took gold medals in free routine of two steps of the FINA Artistic Swimming World Series 2018 in Paris and Syros Island.