The Mexico international scored twice before the 20th minute, and added a fourth on the hour mark following a goal from Igor Paixao. Feyenoord's 4-0 win moved them into third in the Eredivisie, while Ajax continue to languish in 14th; they have only won once this season.
Ajax's troubles have opened the door to Gimenez making history, however, as he has become the first player to score an away hat-trick against the club in the league.