Anastasia Moskaleva/Alexander Eremin (Dmitrov, RUS) lost 10-2 to Nkeiruka Ezekh/Oleg Krasikov (St. Petersburg, RUS) in the Final of the Russian Mixed Doubles Championship, held January 21 - 25, 2021 in Sochi, Russia. To advance to the championship game, Moskaleva/Eremin won 7-2 over Elizaveta Trukhina/Nikolay Lysakov (Irkutsk, RUS) in the semifinals of the 2021 Russian Mixed Doubles Championship in Sochi, Russia; and won 6-5 over Daria Morozova/Mikhail Vaskov (Dmitrov, RUS) in the quarterfinals. of the 2021 Russian Mixed Doubles Championship in Sochi, Russia;
 
Moskaleva/Eremin finished 5-1 in the 0-team qualifying round. . In their opening game, Moskaleva/Eremin defeated Olga Kotelnikova/Petr Kuznetsov (Dmitrov, RUS) 9-1, then won 12-0 against Irina Poletaeva/Egor Volkov (Sochi, RUS) and 8-3 against Margarita Evdokimova/Petr Dron (St. Petersburg, RUS). Moskaleva/Eremin won 9-6 against Alina Lets/Kirill Surovov (Dmitrov, RUS), then won 8-3 against Evdokimova/Dron. Moskaleva/Eremin went on to lose 7-4 against Ezekh/Krasikov in their final qualifying round match.
 
Moskaleva/Eremin ranks th overall on the Year-to-Date rankings with points earned so far this season.