[11] In March, Korneeva qualified for the main draw and won the $60k event in Pretoria, defeating Tímea Babos in the final, in straight sets.

At age 15 years, eight months and 18 days, Korneeva became the fifth youngest player in history to win an ITF tournament at $60k level or above.

[citation needed] In June, she won her second junior Grand Slam title, defeating Lucciana Pérez Alarcón in the final of the French Open girls' singles in straight sets, becoming the first player since Magdalena Maleeva in 1990 to win the first two Grand Slam events in girls' singles in the same year.

[13] Together with Sara Saito, Korneeva also reached the final of the girls' doubles, losing to Tyra Caterina Grant and Iva Jovic.

[22] Partnering Polina Kudermetova, she was runner-up in the doubles at the WTA 125 Abierto Tampico, losing to Carmen Corley and Rebecca Marino in the final.

[23] Korneeva reached her first WTA Tour singles semifinal at the Mérida Open with wins over Alycia Parks,[24] fifth seed Anna Blinkova[25] and Sara Sorribes Tormo.