[12] At the 2009 Junior World Championships in Nagano, she won a silver medal in parallel slalom,[13] the discipline that she made only one podium in her Europa Cup career.

[22] At the 2011 World Championships in La Molina, Zavarzina won the gold medal in the parallel giant slalom and became the second ever Russian snowboarder to claim a World title after Yekaterina Tudegesheva who won the gold medal, also in parallel giant slalom, in 2007.

Although she did not manage to reach World Cup podium during the season, she made a couple of fourth-place finishes in Bad Gastein and Arosa.

[31] During the parallel slalom race in Bad Gastein on 12 January 2014, a month before the Olympics was due to begin, she took a heavy fall and broke her left arm.

[25] Three days later in the inaugural Olympic parallel slalom, she was eliminated in the 1/8 finals by the eventual champion Julia Dujmovits and placed thirteenth while her husband went on to win the gold medal in the men's event.

She won two World Cup parallel giant slalom races in Bansko and Bokwang,[47][48] the latter was also the test event for the upcoming Winter Olympic Games,[49] and grabbed one more podium spot in the same discipline with a third place-finish in the season-opener in Carezza.

In the parallel giant slalom event, Zavarzina set the second fastest time in the qualification round but lost to her teammate Yekaterina Tudegesheva in the quarter-finals.

[53] At the end of the season, Zavarzina clinched the parallel giant slalom crystal globe for the first time in her career.

[59] Zavarzina was one of the numerous Russian athletes that were permitted by the IOC to participate at the 2018 Winter Olympics in Pyeongchang under the neutral flag after the country's state-sponsored doping program was exposed.

[60] She said that in the course of preparation for the Olympics she had to sign a lot of "unpleasant papers" and claimed that "unequal conditions" have been created for Russian athletes.

[62] After the Olympics, Zavarzina skipped the World Cup event in Kayseri, stating that the Parallel Giant Slalom title is already out of her reach and she need to recover herself after the Games.

[63][64] She returned to World Cup podium in Scuol with a runner-up finish in parallel giant slalom,[65] losing to Ledecká by 0.02 seconds in the final.

[5] She confirmed that she has not been paid a salary since 2017 and stated that she will not receive a presidential scholarship for her results in 2017 and 2018, as well as funding for 2019 unless she undergo the in-depth medical examination and pass.

[72] Zavarzina married with the future double Olympic champion Vic Wild in the summer of 2011, a former member of the U.S. snowboard team who is now competing for Russia after receiving a Russian citizenship in 2012.

[77] Zavarzina is the brand ambassador for Toyota Russia,[78] Tag Heuer,[79] S7 Airlines[80] and Zasport,[81] the official outfitter of the Russian Olympic team.