[2] In November 2015, Boikova teamed up with her first pair skating partner, Dmitrii Kozlovskii, who had switched to the discipline four months earlier.

[4] Boikova/Kozlovskii's international debut came in September 2016 at a Junior Grand Prix (JGP) event in Russia, where they won the silver medal.

Ranked first in the short program and fourth in the free skate, they finished second to Australia's Ekaterina Alexandrovskaya / Harley Windsor with a deficit of 2.05 points.

In October 2017, Boikova/Kozlovskii competed at their first international senior event, the 2017 CS Minsk-Arena Ice Star, where they won the gold medal with their personal best score of 191.58 points.

In late October, Boikova/Kozlovskii made their Grand Prix debut at 2018 Skate Canada, where they placed fourth with a personal best score of 196.54 points.

[7][8] Assigned to the 2019 European Championships, Boikova/Kozlovskii placed fourth in the short program, 0.12 points behind Nicole Della Monica / Matteo Guarise of Italy.

[10] Boikova/Kozlovskii concluded the season at the 2019 World Championships, placing sixth in the short program after losing levels on their death spiral and step sequence.

[16] Boikova/Kozlovskii's results qualified them to the Grand Prix Final in Torino, where they placed second in the short program behind reigning World Champions Sui/Han.

[17] The free skate was less successful, marked by errors on jump and throw elements as well as their final lift, resulting in them placing fifth in that segment and dropping to fourth overall.

[19] Boikova/Kozlovskii then won the free skate, winning their first Russian national title by 0.47 points, an occasion he called "something special and memorable.

"[20] In what would prove to be their final competition of the season, Boikova/Kozlovskii entered the 2020 European Championships as the title favourites and won the short program with a new world record score.

[25] Following Kozlovskii's recovery, they competed at the fourth stage, where several throw errors caused them to finish behind new training mates Mishina/Galliamov and longtime domestic rivals Tarasova/Morozov.

[26] The competition occurred shortly after the death of Igor Moskvin, the husband of their primary coach Tamara Moskvina.

[27] Shortly afterward, they competed on the Grand Prix at the 2020 Rostelecom Cup, attended mainly by Russian-based skaters to minimize pandemic travel.

[30] At the 2021 Russian Championships, Boikova/Kozlovskii attempted to mount a title defense despite only having a week to prepare but encountered throw jump issues in both segments.

[36] For the event, they prepared a new short program to music from the film Howl's Moving Castle, which Boikova called "a piece of art and not just a movie."

[43] At the 2022 Russian Championships, Boikova/Kozlovskii placed second in both segments of the competition to take their second consecutive silver medal, 3.87 points behind rivals Mishina/Galliamov.

[46] Competing at the 2022 Winter Olympics in the pairs event, Boikova/Kozlovskii placed fourth in the short program after Boikova had to put a hand down on the landing of their throw flip.