<Table> <Tr> <Th_colspan="2"> World Series </Th> </Tr> <Tr> <Td_colspan="2"> The Commissioner's Trophy is awarded to the team that wins the World Series . </Td> </Tr> <Tr> <Th> First played </Th> <Td> 1903 </Td> </Tr> <Tr> <Th> Most recently played </Th> <Td> 2017 </Td> </Tr> <Tr> <Th> Current champions </Th> <Td> Houston Astros (2017) (1st title) </Td> </Tr> <Tr> <Th> Current runners - up </Th> <Td> Los Angeles Dodgers </Td> </Tr> <Tr> <Th> Most titles </Th> <Td> New York Yankees (27) </Td> </Tr> </Table> <Tr> <Th_colspan="2"> World Series </Th> </Tr>

Who's won the most world series in baseball