At Roland Garros, the 102nd ranked Pironkova upset 16th seed Sara Errani in the first round and 19th seed Sloane Stephens in the third round, both in straight sets. In the fourth round against world No. 2, Agnieszka Radwańska, after Pironkova was a set and three games down, the match was cancelled due to rain and resumed after two days. The Bulgarian took advantage of the situation, dominating the rest of the match after the pause by winning 12 out of 15 games, thus eventually reaching the quarterfinals and becoming the first Bulgarian since Sesil Karatantcheva in 2005 to reach this stage of the tournament. Pironkova's run at Roland Garros ended with a loss to Samantha Stosur.