Unseeded Czech Barbora Krejcikova completed a remarkable transition from a doubles specialist to a Grand Slam singles champion on Saturday by conquering Russia's Anastasia Pavlyuchenkova in the final of the French Open women's tournament.

The 25-year-old, a former doubles No. 1, defeated Pavlyuchenkova 6-1, 2-6, 6-4 to become the first Czech to lift the Suzanne Lenglen Cup since Hana Mandlikova, who represented the former Czechoslovakia, triumphed in 1981.

Krejcikova was languishing outside the top 100 before last September's edition of the French Open — her preparations restricted to a series of ITF Circuit events back home — but a run to the fourth round in Paris changed her singles career.