Kammala jumla mai zuwa: Bayan gwagwarmayar da Cubs ya rufe José Veras a farkon kakar 2014, an kira Rondón sabon Cubs mai rufewa. Ya yi nasara a kakar wasa ta 2014. Ya sami ceto biyu a cikin Wasannin Division na League na National League na 2015 a kan St. Louis Cardinals, gami da ceto a wasan wasa na 4. Tare da ƙarin Aroldis Chapman a ƙarshen Yuli 2016, Rondon ya koma matsayin saiti a cikin bullpen. Rondon ya gama 2016 tare da rikodin 2-3 da ERA na 3.53 a cikin wasanni 54. 'Yan Cubs sun lashe
Gasar cin Kofin Duniya ta 2016 a kan Cleveland Indians, ta kawo karshen karancin shekaru 108 na Cubs. Ba a ba shi kyauta ba kuma ya zama dan wasa kyauta a ranar 1 ga Disamba, 2017.