[citation needed] The Averinas began appearing in international competitions in 2011 competing at the 2011 Russian-Chinese Youth Games where Dina won the gold and Arina finishing 5th in the all-around.

[12] She then competed at International MTM Cup in Ljubljana (along with teammates Aleksandra Soldatova and Arina Averina) won the Team gold medal.

[citation needed] In 2015 season, Dina started her season at the 2015 Moscow Grand Prix, she then competed at the Corbeil-Essonnes International Rhythmic Gymnastics Tournament where she won the all-around silver medal behind twin sister Arina Averina, she qualified to 4 event finals, taking gold in ribbon (tied with Arina), silver medals in hoop, ball and placed 6th in clubs.

On 7–9 August, Dina competed at the MTK Budapest taking gold in the all-around, hoop, ball, clubs and a silver in ribbon.

Dina followed another gold medal win in the all-around at the 2015 Dundee International Tournament in Sofia, ahead of twin sister Arina.

[citation needed] In 2016, Dina began her season competing at the 2016 Grand Prix Moscow finishing 6th in the all-around and qualified to the hoop final.

[16] Dina then competed in the senior division at the International tournament in Lisbon where she won the all-around gold and all apparatus finals.

On 27–29 May, Dina finished 5th in the all-around at the 2016 Sofia World Cup with a total of 72.900 points, she qualified in hoop finals placing 4th behind sister Arina Averina.

[citation needed] In 2017, Dina's season began in competition at the 2017 Grand Prix Moscow where she won the all-around gold medal with a new personal best total score of 76.050 points, she qualified to all the apparatus finals taking gold in hoop, clubs, ribbon and a silver medal in ball behind Aleksandra Soldatova.

[20] Dina then participated in the organized Desio-Italia Trophy where she won the All-around and team gold medal (together with Twin Sister Arina).

[27] At the 2017 World Championships held on 30 August – 3 September in Pesaro, Italy, in the first day of the apparatus finals; Dina won Gold in Hoop (19.100) and Silver in Ball (18.700).

She also competed at the 2019 European Games, winning gold in all-around, hoop and ribbon, silver in clubs and bronze in ball.

Dina started the season at the Moscow Grand Prix, where she won gold ahead of her silver and bronze compatriots Arina Averina and Lala Kramarenko.

In the All-Around Final Dina lost to Linoy Ashram from Israel and finished second with a silver medal, with a total score of 107.650.

The ROC and the head coach of the Russian Team, Iriner Viner accused the judges of bias towards Linoy Ashram and called the results an „injustice“.

The Russian Olympic Committee (ROC) has officially launched a complaint to the International Gymnastics Federation (FIG) over the all-around rhythmic result at Tokyo 2020, with a Foreign Ministry spokeswoman calling the outcome a "forgery".

[32] The FIG responded to this, stating that „ Following this process, we can confirm that no bias or irregularities were identified in the judging panels.“ and that „The FIG has set up strict criteria for objective selection of the most qualified and unbiased judges for the Olympic Games and we are pleased by their work.“[33] Ashram was the first non-Russian gymnast to win the gold since Ukraine's Ekaterina Serebrianskaya at Atlanta 1996.