Billionaire's daughter pegula makes history at the US Open in a gripping match that had fans on the edge of their seats Jessica pegula the 30-year-old who had previously never Advanced past a grand slam quarterfinal defied all expectations the match opened with Carolina muchova displaying a dominant performance breezing through the first set 61 and breaking early in the second but the tides turned dramatically pegula showcasing the resilience and hunger that Define Champions remarked I'm still hungry a statement that echoed through her play l i mean I'm just happy to be in the final but obviously I come here to to want to win the titles muchova caught off guard by Peg's sudden surge in performance admitted pegula was nervous at first then she shocked me as well felt that she was a little nervous and she picked it up and then she started to play really solid