<Tr> <Th_colspan="2"> MLB seasons </Th> </Tr> <Tr> <Td_colspan="2"> ← 2017 2019 → </Td> </Tr> <P> The 2018 Major League Baseball season began on March 29, 2018, and is scheduled to end on September 30 . The postseason will begin on October 2 . The 2018 World Series is set to begin on October 23, and a potential Game 7 is scheduled for October 31 . </P> <P> The 89th Major League Baseball All - Star Game was held on July 17 at Nationals Park, the home of the Washington Nationals . The American League won 8--6 in 10 innings . </P>

When does the american baseball season start and finish