Pacquiao v Mayweather

[DenverGP]

Mayweather vs. Pacquiao Betting Odds at Bovada as of April 30:
Floyd "Money" Mayweather Jr -210
Manny "Pac Man" Pacquiao +170
Over 11½ Rounds -310
Under 11½ Rounds +240

-210 on Mayweather means that for every $2.10 you bet, you win $1 if he wins.
+170 on Pacquiao means that for every $1.00 you bet, you win $1.70 if he wins.

So the negative numbers are the favorites.