Betina Popova

Popova/Vlasenko made their ISU Junior Grand Prix debut in the 2013–14 season. They won the silver medal in Minsk, Belarus and then gold in Ostrava, Czech Republic. Their results qualified them for the JGP Final in Fukuoka, Japan, where they placed fourth. After taking the bronze medal at the 2014 Russian Junior Championships, the two were assigned to the 2014 World Junior Championships and finished seventh in Sofia, Bulgaria.

Popova/Vlasenko's first assignment of the 2014–15 JGP season was in Ostrava, Czech Republic. Ranked second in the short dance and fourth in the free dance, they finished second to Canada's Mackenzie Bent / Garrett MacKeen by a margin of 6.75 points. Popova/Vlasenko were awarded gold in Dresden, Germany after placing first in both segments and outscoring Lorraine McNamara / Quinn Carpenter of the United States by 7.96 points. At the 2014–15 JGP Final in Barcelona, they won the bronze medal behind Alla Loboda / Pavel Drozd. The two finished eleventh at the 2015 World Junior Championships in Tallinn, Estonia.

Competing in the 2015–16 JGP series, Popova/Vlasenko outscored Angélique Abachkina / Louis Thauron of France by 7.3 points for the gold in Riga, Latvia. They took silver at their JGP assignment in Logroño, Spain – finishing second to another French team, Marie-Jade Lauriault / Romain Le Gac, by a margin of 1.78 points – and qualified for their third JGP Final. At the final, held in December in Barcelona, Popova/Vlasenko finished fourth, having scored 0.45 less than the bronze medalists, Rachel Parsons / Michael Parsons of the United States. After taking silver behind Loboda/Drozd at the Russian Junior Championships, they were assigned to the World Junior Championships in Debrecen, Hungary.

In 2017–18 season they competed at three ISU Challenger Series competitions. They won the gold medal at the 2017 CS Warsaw Cup with a personal best score of 164.07 points. They also won the bronze medal at the 2017 CS Ondrej Nepela Trophy. At the 2017 CS Finlandia Trophy they placed fifth.

In October 2017 they made their Grand Prix debut at the 2017 Rostelecom Cup where they placed sixth. In December 2017 they competed at the 2018 Russian Championships where they placed fourth after placing fifth in the short dance and third in the free dance.

In May 2018 Anjelika Krylova and Oleg Volkov became their new coaches.[6][7]

Popova/Mozgov started their season in mid September at the 2018 CS Ondrej Nepela Trophy where they won the bronze medal with a personal best score of 170.47 points. In early November they placed seventh at the 2018 Grand Prix of Helsinki. Three weeks later they finished eighth at the 2018 Internationaux de France. In early December they won their second Challenger Series bronze medal of the season at the 2018 CS Golden Spin of Zagreb.

They placed fourth at the Russian Championships for the second consecutive year.[8]

In March, Popova/Mozgov have participated in the 2019 Winter Universiade in Krasnoyarsk Russia. They finished first in the short and second in the free, earning the gold medal with a total of 183.01 points.[9]

Popova/Mozgov took time off to heal injuries following their Universiade victory, and then resumed training for the new season. The two selected "Bohemian Rhapsody" as their free dance music, believing it would be a new sort of material for them.[9] They placed fourth at the 2019 CS Ondrej Nepela Memorial and then won the bronze medal at the 2019 CS Finlandia Trophy. Given one Grand Prix assignment, they placed eighth at the 2019 Skate Canada International.[10][11]

Popova/Mozgov announced their retirement from competition on February 14, 2020, with Popova indicating that she was dealing with an eating disorder.[12][13]