<P> Mayweather's assistant trainer (his father) advised him onto a very defensive strategy, saying that "the less you get hit, the longer you last". This style of fighting elicited boos from the crowd especially during the 11th and 12th round when Floyd may have believed he had the score "locked up" already and didn't need to win any more rounds, saying that "When you're up on the cards, box smart ." </P> <P> Floyd Mayweather equaled his own all time base purse record with a guaranteed $32 million . Robert Guerrero was guaranteed $3 million . </P> <Table> <Tr> <Th_colspan="8"> </Th> </Tr> <Tr> <Th_colspan="1"> Weight Class </Th> <Th_colspan="1"> </Th> <Th_colspan="1"> </Th> <Th_colspan="1"> </Th> <Th_colspan="1"> Result </Th> <Th_colspan="1"> Round </Th> <Th_colspan="1"> Time </Th> <Th_colspan="1"> Notes </Th> </Tr> <Tr> <Td> Welterweight </Td> <Td> Floyd Mayweather Jr . </Td> <Td> def . </Td> <Td> Robert Guerrero </Td> <Td> Unanimous Decision </Td> <Td> 12 </Td> <Td> 3: 00 </Td> <Td> Championship bout . </Td> </Tr> <Tr> <Td> Featherweight </Td> <Td> Abner Mares </Td> <Td> def . </Td> <Td> Daniel Ponce De Leon </Td> <Td> TKO </Td> <Td> 9 </Td> <Td> 2: 20 </Td> <Td> Championship bout . </Td> </Tr> <Tr> <Td> Super Bantamweight </Td> <Td> Léo Santa Cruz </Td> <Td> def . </Td> <Td> Alexander Muñoz </Td> <Td> TKO </Td> <Td> 5 </Td> <Td> 1: 05 </Td> <Td> </Td> </Tr> <Tr> <Td> Middleweight </Td> <Td> J'Leon Love </Td> <Td> vs . </Td> <Td> Gabriel Rosado </Td> <Td> No Contest </Td> <Td> 10 </Td> <Td> 3: 00 </Td> <Td> </Td> </Tr> <Tr> <Td> Super Middleweight </Td> <Td> Ronald Gavril </Td> <Td> def . </Td> <Td> Roberto Yong </Td> <Td> TKO </Td> <Td> </Td> <Td> 2: 12 </Td> <Td> </Td> </Tr> <Tr> <Td> Super Middleweight </Td> <Td> Lanell Bellows </Td> <Td> def . </Td> <Td> Matt Garretson </Td> <Td> TKO </Td> <Td> </Td> <Td> 0: 32 </Td> <Td> </Td> </Tr> <Tr> <Td> Super Middleweight </Td> <Td> Luis Arias </Td> <Td> def . </Td> <Td> DonYil Livingston </Td> <Td> Majority Decision </Td> <Td> 6 </Td> <Td> 3: 00 </Td> <Td> </Td> </Tr> <Tr> <Td> Light Heavyweight </Td> <Td> Badou Jack </Td> <Td> def . </Td> <Td> Michael Gbenga </Td> <Td> TKO </Td> <Td> </Td> <Td> 2: 26 </Td> <Td> </Td> </Tr> </Table> <Tr> <Th_colspan="1"> Weight Class </Th> <Th_colspan="1"> </Th> <Th_colspan="1"> </Th> <Th_colspan="1"> </Th> <Th_colspan="1"> Result </Th> <Th_colspan="1"> Round </Th> <Th_colspan="1"> Time </Th> <Th_colspan="1"> Notes </Th> </Tr>

How many rounds did mayweather and guerrero go