At the national Ukrainian Women’s Championship, her progress and achievements have been noteworthy. In 2003 (Mykolaiv) and 2004 (Alushta), she finished in fourth and sixth places respectively, thereafter becoming the champion at Alushta in 2005, and outperforming top seed Tatjana Vasilevich along the way. She almost repeated the success at Odessa in 2006, finishing second, but ahead of the higher rated Natalia Zhukovaand Inna Gaponenko. At these combined (men and women) events, she has defeated grandmasters of the calibre of Anton Korobov and Oleg Romanishin and in Ukraine was endowed with the title “Honored Master of Sports”.
Her many successes in team chess reached an early pinnacle in 2006. At the Turin Women’s Olympiad she was a part of the victorious Ukrainian team and remained undefeated throughout the contest. Ushenina and her compatriots Natalia Zhukova (also undefeated), Kateryna Lahno and Inna Gaponenko each scored between 70 and 80%, in what was a commanding performance, earning them team gold medals and much adulation in chess circles. In 2008, at the Dresden Olympiad, Ukraine’s ladies took home the team silver medals, after failing to oust the powerful Georgian team from the top spot.
For Ushenina, her earliest major medal-winning performance occurred in Balatonlelle, at the European Team Championship for Girls (under 18) in 2002, where she took team gold and individual silver on board 1. On another occasion at the 2007 Women’s World Team Chess Championship in Yekaterinburg, she helped Ukraine to a bronze medal finish and added an individual bronze to her tally. She has also played twice at the European Team Chess Championship, in 2005 and 2007. The team finished outside of the medal places each time, but for her personal performance, Ushenina took individual gold at the latter event, held in Heraklion, with 5/7.
A very active league chess player, she regularly plays in the national leagues of France, Russia, Serbia, Montenegro and Slovenia.
Tournament successes at Kiev in 2001 and Odessa in 2003, earned her the WGM title, awarded in 2003. Her Olympiad performance and subsequent results in Pardubice and Abu Dhabi (both 2006) then qualified her for the IM title, awarded in January 2007.
In the ‘A2’ section of the prestigious Aeroflot Open in Moscow 2007, she scored 5 points from the first 7 rounds, defeating three male grandmasters for a part performance rating of 2672. At the Women’s European Individual Chess Championship, held 2008 in Plovdiv, she took the bronze medal, losing out 1–2 to Viktorija Čmilytė in a tie-break for silver. Playing at the Wijk aan Zee Corus ‘C’ (mixed) event of 2008, she found the standard very tough and finished towards the bottom of the Group, equal with Peng Zhaoqin on 4½/13. At the 2008 Moscow Open Women’s event she took second place, behind Anna Muzychuk and ahead of Natalia Zhukova and Kateryna Lahno. In 2010 she won the Rector Cup in Kharkiv with a performance rating of 2649.
In the final of the Women’s World Chess Championship 2012 she achieved a tiebreak victory over Antoaneta Stefanova to become the 14thWomen’s World Chess Champion. This automatically entitled her to the title of grandmaster and also qualified her to the 2013 Chess World Cup. She is Ukraine’s first women’s world chess champion and thanks to this victory Ushenina was voted Ukraine’s best female chess player of 2012.