Pedzisa mutsara unotevera: Muna 2013, Zimmermann akatumidzwa zita rake rokutanga
All-Star Game, asi akasarudza kusatamba nemhaka yokuoma kwomutsipa wake. Akapedza mwaka aine basa rakakwirira mukukunda, achienda 19<unk>9, ukuwo achinyora 3.25 ERA uye 161 strikeouts mune basa-rakakwirira innings pamusoro pemakore 32 anotanga. Kukunda kwake kwakaenzana naAdam Wainwright nokuda kwokutungamirira National League.