Chwalińska, the world No. 114, has the opportunity to become the second Grand Slam champion qualifier in history.

The 24-year-old from Poland flummoxed Russian No. 22 seed Kalinskaya with her changes in speed, spin, height and depth.

World number 114 Maja Chwalinska continued her stunning French Open run on Wednesday by beating 22nd seed Anna Kalinskaya to become just the second women's qualifier to reach the…