<Tr> <Td> Tom Brunansky </Td> <Td> Minnesota </Td> <Td> </Td> </Tr> <Tr> <Td> Cal Ripken Jr . </Td> <Td> Baltimore </Td> <Td> </Td> </Tr> <Tr> <Th_colspan="3"> National League </Th> </Tr> <Tr> <Td> Dave Parker </Td> <Td> Cincinnati </Td> <Td> 6 </Td> </Tr>

How does the mlb home run derby work