▁trial ▁from ▁ 2 0 0 3 ▁to ▁ 2 0 0 4 , ▁the ▁practice ▁was ▁extended . ▁ ▁The ▁American ▁League ▁had ▁won ▁every ▁All - Star ▁Game ▁since ▁this ▁change ▁until ▁ 2 0 1 0 ▁and ▁thus ▁enjoyed ▁home - field ▁advantage ▁from ▁ 2 0 0 2 , ▁when ▁it ▁also ▁had ▁home - field ▁advantage ▁based ▁on ▁the ▁altern ating ▁schedule , ▁through ▁ 2 0 0 9 . ▁From ▁ 2 0 0 3 ▁to ▁ 2 0 1 0 , ▁the ▁AL ▁and ▁N L ▁had ▁each ▁won ▁the ▁World ▁Series ▁four ▁times , ▁but ▁none ▁of ▁them ▁had ▁gone ▁the ▁full ▁seven ▁games . ▁Since ▁then , ▁the ▁ 2 0 1 1 , ▁ 2 0 1 4 , ▁ 2 0 1 6 , ▁ 2 0 1 7 , ▁and ▁ 2 0 1 9 ▁World ▁Series ▁have ▁gone ▁the ▁full ▁seven ▁games . ▁ ▁This ▁rule ▁was ▁subject ▁to ▁debate , ▁with ▁various ▁writers ▁feeling ▁that ▁home - field ▁advantage ▁should ▁be ▁decided ▁based ▁on ▁the ▁regular ▁season ▁records ▁of ▁the ▁participants , ▁not ▁on ▁an ▁exhibition ▁game ▁played ▁several ▁months ▁earlier . ▁Some ▁writers ▁especially ▁question ed ▁the ▁integrity ▁of ▁this ▁rule ▁after ▁the ▁ 2 0 1 4 ▁All - Star ▁Game , ▁when ▁St . ▁Louis ▁Card inals ▁pitch er ▁Adam ▁W ain w right ▁suggested ▁that ▁he ▁intention ally ▁gave ▁D erek ▁J eter ▁some ▁easy ▁pitch es ▁to ▁hit ▁in ▁the ▁New ▁York ▁Yan ke