Sergey Mozgov

Popova/Mozgov announced their retirement from competition in February 2020. Mozgov indicated that he might seek a coaching career.

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.

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. 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.

In May 2018 Anjelika Krylova and Oleg Volkov became their new coaches.

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.

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.

Although still age-eligible for junior events in the 2015–16 season, Yanovskaya/Mozgov decided to move up to the senior ranks. Debuting on the Grand Prix, they placed sixth at the 2015 Skate America and 2015 Trophée Éric Bompard. In December, they finished sixth at the 2016 Russian Championships in Yekaterinburg. On 2 May 2016, the Russian media reported that their partnership had ended.

Popova/Mozgov made their international debut at the 2016 CS Golden Spin of Zagreb where they placed fifth.

Yanovskaya/Mozgov decided to remain in the junior ranks in the 2014–15 season. In addition to Moscow, they also trained in Liepāja in the summer. Mozgov recovered from a knee injury early in the season. In the 2014–15 JGP series, the duo won gold medals in Estonia and Croatia, earning qualification to their fourth JGP Final. At the event, held in December in Barcelona, they outscored Alla Loboda / Pavel Drozd for the gold and stood atop the podium for the second consecutive year. In March, they competed at the 2016 World Junior Championships in Tallinn, Estonia. Ranked first in both segments, they were awarded the gold medal ahead of Lorraine McNamara / Quinn Carpenter.

In 2013–14, Yanovskaya/Mozgov began their season by taking gold at the 2013 JGP Slovakia in Košice. They won another gold at the 2013 JGP Estonia, qualifying them for their third JGP Final in Fukuoka, Japan. Setting personal bests, Yanovskaya/Mozgov placed first in both segments at the final and won the gold medal ahead of Kaitlin Hawayek / Jean-Luc Baker. After placing second to Stepanova/Bukin at the 2014 Russian Junior Championships, they took the silver medal at the 2014 World Junior Championships in Sofia, finishing second to Hawayek/Baker.

Yanovskaya/Mozgov won the bronze medal at their first Junior Grand Prix event, in Gdańsk, Poland, and then gold in Tallinn, Estonia. Their placements qualified them for the Junior Grand Prix Final, where they placed second in the short dance, third in the free, and took the silver medal ahead of Alexandra Stepanova / Ivan Bukin. After winning the gold medal at the 2012 Winter Youth Olympics, they placed fourth at the 2012 Russian Junior Championships. At the 2012 World Junior Championships, they were third in the short dance. During the free dance the referee stopped their music because Mozgov's left bootstrap had come loose. Yanovskaya/Mozgov finished fourth overall behind American ice dancers Alexandra Aldridge / Daniel Eaton who moved up the rankings and took the bronze medal.

In 2012–13, Yanovskaya/Mozgov won a pair of silver medals at JGP events in Austria and Slovenia and qualified for the JGP Final in Sochi, Russia, where they finished fourth. They won the bronze medal at the 2013 Russian Junior Championships.

Mozgov teamed up with Anna Yanovskaya in 2011. They were coached mainly by Svetlana Alexeeva at the Medvedkovo rink in Moscow.

In the 2010–11 season, Mozgov competed with Tatiana Baturintseva. They received no JGP assignments and parted ways after placing 9th at the 2011 Russian Junior Championships.

Mozgov and Evgenia Kosigina made their international debut in the 2008–09 season. The following season, they received a Junior Grand Prix (JGP) assignment in Hungary, where they placed fifth. He ended their partnership after they finished 12th at the 2010 Russian Junior Championships.

Mozgov began skating in 1999. His parents introduced him to skating to improve his health. Early in his career, he competed with Sabina Adigamova.

Sergey Alexandrovich Mozgov (Russian: Серге́й Александрович Мозгов ; born 10 March 1995) is a Russian retired competitive ice dancer. With former partner Betina Popova, he is the 2017 CS Warsaw Cup champion. With former partner Anna Yanovskaya, he was the 2015 World Junior champion, two-time (2013, 2014) JGP Final champion, the 2012 Youth Olympics champion, the 2014 World Junior silver medalist, and the 2015 Russian junior national champion.