She won a gold medal in the women's team competition at the 2012 Summer Olympics, and announced her retirement on 1 July 2017 and working for Russian Football Union.

After reaching a certain level, Timanina moved to Moscow, where she started to train in the Sport School of preparation of Olympic Reserve - "Trud.

[3] In 2009 Angelika made her senior debut in the World Cup held in Rome as a member of the Russian national team (with Anastasia Davydova, Natalia Ishchenko, Daria Korobova, Anna Nasekina, Alexandra Patskevich, Svetlana Romashina, Alla Shishkina) and won two gold medals in the team events (free routine and technical routine).

In 2010, at the European Aquatic Championship in Budapest, Russian competitors completed a grand slam performance, winning gold medals in team and figures.

In 2011 at the World Championships in Aquatics, held in Shanghai (China), Timanina became a three-time champion in the competition combo routine and groups.