Valeria Denisenko/Mikhail Vlasenko (Irkutsk, RUS) lost 9-6 to Arina Rusina/Nikita Shekhirev (Moscow, RUS) in the Bronze Medal game at the 2021 Russian Mixed Doubles B-Division Championship in Sochi, Russia. of the 2021 Russian Mixed Doubles B-Division Championship in Sochi, Russia; Valeria Denisenko/Mikhail Vlasenko (Irkutsk, RUS) lost 9-6 to Arina Rusina/Nikita Shekhirev (Moscow, RUS) in the Bronze Medal game at the 2021 Russian Mixed Doubles B-Division Championship in Sochi, Russia. Denisenko/Vlasenko lost 9-3 to Aleksandra Stoyarosova/Ivan Kazachkov (Novosibirsk, RUS) in the semifinals to drop into the third place game. of the 2021 Russian Mixed Doubles B-Division Championship in Sochi, Russia; and won 10-3 over Maria Drozdova/Danil Kiba (St. Petersburg, RUS) in the quarterfinals. of the 2021 Russian Mixed Doubles B-Division Championship in Sochi, Russia;
 
Denisenko/Vlasenko finished 4-1 in the 0-team qualifying round. . In their opening game, Denisenko/Vlasenko defeated Viktoria Desova/Kirill Palagney (Irkutsk, RUS) 8-5, then won 7-3 against Kristina Dudko/Vladislav Velichko (Krasnoyarsk, RUS) and 9-1 against Sofia Yarutina/Alexey Demin (Yekaterinburg, RUS). Denisenko/Vlasenko won 7-3 against Anastasia Borisova/Alexey Kulchak (Moscow, RUS). Denisenko/Vlasenko went on to lose 14-4 against Aleksandra Antonova/Vadim Shvedov (St. Petersburg, RUS) in their final qualifying round match.
 
Denisenko/Vlasenko ranks th overall on the Year-to-Date rankings with points earned so far this season.