<P> As in the second round with Chattanooga, all of the ballots currently counting for Nashville are added to the totals of Memphis or Knoxville based on which city is ranked next on that ballot . In this example the second - choice of the Nashville voters is Chattanooga, which is already eliminated . Therefore, the votes are added to their third - choice: Knoxville . </P> <P> The third round of tabulation yields the following result: </P> <Table> <Tr> <Th> Votes in round / City Choice </Th> <Th> 1st </Th> <Th> 2nd </Th> <Th> 3rd </Th> </Tr> <Tr> <Td> Memphis </Td> <Td> 42% </Td> <Td> 42% </Td> <Td> 42% </Td> </Tr> <Tr> <Td> Nashville </Td> <Td> 26% </Td> <Td> 26% </Td> </Tr> <Tr> <Td> Knoxville </Td> <Td> 17% </Td> <Td> 32% </Td> <Td> 58% </Td> </Tr> <Tr> <Td> Chattanooga </Td> <Td> 15% </Td> </Tr> </Table> <Tr> <Th> Votes in round / City Choice </Th> <Th> 1st </Th> <Th> 2nd </Th> <Th> 3rd </Th> </Tr>

Why would there be a run off election