Canelo-Mayweather: Guaranteed Win Bet Available (for UK residents)
Paddy Power: -175 May by Decision; +800 Canelo by Decision; +500 May by KO/DQ; +500 Canelo by KO/DQ; +1600 Draw
...Bet $175 on May by decision. Bet $25 on each of the remaining four alternatives. You break even if May by decision or either guy wins by KO. You'll make money if Canelo by decision or fight is a draw.
IOW, it's a no-lose bet. You'll either break-even or win money, regardless of the outcome.
Unless, I'm missing something?