Kateryna Lagno

At junior level, she won the Girls Under 10 section of the World Youth Chess Championships in 1999 and the Girls Under 14 at the European Youth Chess Championships in 2001.

Lagno was nominated by FIDE president to play in the 64-player knockout Women's World Chess Championship 2004, where she was the fifth seed. She reached the third round and lost to eventual runner-up Ekaterina Kovalevskaya. At the age of 15 she won the 2005 European Individual Women's Championship, held in June in Chişinău, Moldova. Tied with Russian IM Nadezhda Kosintseva at the end of the 12th round with 9 points each, Lagno won both games of a two-game blitz tie-break playoff to win the championship. The following year, she won the women's super-tournament "North Urals Cup", attaining a grandmaster norm in the process.

In May 2008, Lagno won the European Individual Women Chess Championships again in Plovdiv, by one-half point in the 11-round open tournament.[5]

In 2009, she played for the club "Spartak" that won the Russian team championship and the European Club Cup in Ohrid.

In August 2010, Lagno became Women's World Blitz Champion.[6] She finished third in the Grandmaster Group C of the Tata Steel Chess Tournament 2011 in Wijk aan Zee.[7] At the 40th Chess Olympiad in Istanbul in 2012, she won the individual bronze medal for her performance on board one.

In December 2012, Lagno tied for first with Hou Yifan, Humpy Koneru and Anna Muzychuk in the women's rapid chess event of the SportAccord World Mind Games in Beijing, taking the gold medal on tie-break score.[8]

In April 2014, Lagno won the Women's World Rapid Championship in Khanty-Mansiysk by tie-break over Alexandra Kosteniuk.[9] On 11 July 2014, FIDE officially approved her transition from the Ukrainian Chess Federation to the Russian Chess Federation, as filed in March 2014.[10]

In 2016 Lagno won the gold medal in the women's blitz chess event of the IMSA Elite Mind Games in Huai'an, China.[11]

In November 2018, Lagno lost to world champion Ju Wenjun in the finals of the Women's World Championship. In December 2018, Lagno won the Women's World Blitz Chess Championship held in St. Petersburg without losing any games.[12]

In May 2019, Kateryna was narrowly defeated[13] by grandmaster Elina Danielian in round 1 of the Women's Speed Chess Championship hosted by Chess.com.[14] The match[15] was a combination blitz & bullet format with the first set being 5 minutes with a 1-second increment (5+1), the second set being 3+1, and the final set being 1+1. The match was decided by the final bullet game as the score was tied leading up to the finale.