Yealimi Noh seized control of the Women's British Open after Haeran Ryu imploded on the back nine. Noh enters the final round with a three-shot lead, the kind of cushion that matters in major championship golf.
Ryu held the advantage heading into the weekend but couldn't hold it together when it mattered. The collapse hands Noh genuine momentum heading into Sunday, though a three-shot lead in a major is never a coronation. She'll need to execute.
The field still has time to hunt her down, and majors flip fast. But right now, Noh controls her destiny. She plays the final round knowing Ryu already folded under the pressure. That's the kind of advantage that can carry you to a win.