▁Chicago ▁American ▁Gi ants ▁ 1 9 2 3 ▁– ▁Kansas ▁City ▁Mon arch s ▁ 1 9 2 4 ▁– ▁Kansas ▁City ▁Mon arch s ‡ ▁ 1 9 2 5 ▁– ▁Kansas ▁City ▁Mon arch s † ‡ ▁ 1 9 2 6 ▁– ▁Chicago ▁American ▁Gi ants † ‡ ▁ 1 9 2 7 ▁– ▁Chicago ▁American ▁Gi ants † ‡ ▁ 1 9 2 8 ▁– ▁St . ▁Louis ▁Stars † ▁ 1 9 2 9 ▁– ▁Kansas ▁City ▁Mon arch s † ▁ 1 9 3 0 ▁– ▁St . ▁Louis ▁Stars † ▁ 1 9 3 1 ▁– ▁St . ▁Louis ▁Stars † ▁( season ▁did ▁not ▁finish ; ▁Stars ▁had ▁best ▁record ▁among ▁league ▁members ▁and ▁were ▁declared ▁the ▁champions , ▁though ▁non - member ▁Pitts burgh ▁C raw ford s ▁disput ed ▁title ) ▁ ▁† ▁– ▁P enn ant ▁was ▁decided ▁via ▁a ▁split - season ▁schedule ▁with ▁the ▁winner ▁of ▁the ▁first ▁half ▁of ▁the ▁season ▁playing ▁the ▁winner ▁of ▁the ▁second ▁half ▁of ▁the ▁season , ▁unless ▁one ▁team ▁won ▁both ▁hal ves . ▁ ‡ ▁– ▁P enn ant ▁winner ▁went ▁on ▁to ▁play ▁in ▁the ▁Col ored ▁World ▁Series . ▁ ▁League ▁play - offs ▁▁ ▁From ▁ 1 9 2 5 ▁through ▁ 1 9 3 1 , ▁the ▁N NL ▁split ▁the ▁season ▁into ▁two ▁hal ves . ▁ ▁The ▁winner ▁of ▁the ▁first ▁half ▁played ▁the ▁winner ▁of ▁the ▁second ▁half ▁for ▁the ▁league ▁P enn ant