Kammala wannan jumla: A shekara ta 2013, Zimmermann an kira shi ne na farko
All-Star Game, amma ya zaɓi kada ya yi wasa saboda taurin wuyansa. Ya gama kakar wasa tare da babban aiki a cikin nasara, yana zuwa 19<unk>9, yayin da kuma ya buga 3.25 ERA da 161 strikeouts a cikin wasan kwaikwayo mafi girma a cikin wasanni 32 da suka fara. Jimlar nasararsa ta yi daidai da Adam Wainwright don jagorancin National League.