Here are the up to date betting odds from BetUS.com on UFC 87.  Let’s use these lines as an example of how to decipher betting lines.

In this case, if you are convinced like I am that Georges St-Pierre will beat Jon Fitch’s ass and you wanted to win $100, you would have to bet $300.  If you love an underdog, you could bet $100 and win $220.

A bet on Georges St-Pierre – For every $1 bet, you would win .30

A bet on Jon Fitch – For every $1 bet, you would win $2.20.

BetUs.com Betting Odds

Welterweight Championship: Georges St-Pierre vs Jon Fitch

Georges St-Pierre — -300

Jon Fitch — +220

Heavyweights: Brock Lesnar vs Heath Herring

Brock Lesnar — -300

Heath Herring — +220

Lightweights: Kenny Florian vs Roger Huerta

Kenny Florian — -155

Roger Huerta — +125

Sportsbook.com and Bookmaker.com

Georges St. Pierre vs Jon Fitch
Sportsbook.com Odds

• Georges St. Pierre (-265)
• Jon Fitch (+205)

Bookmaker.com Odds (accepts Canadians)

• Georges St. Pierre (-350)
• Jon Fitch (+280)

Brock Lesner vs Heath Herring
Sportsbook.com Odds

• Brock Lesner (-275)
• Heath Herring (+205)

Kenny Florian vs Roger Huerta
Sportsbook.com Odds

• Kenny Florian (-140)
• Roger Huerta (+110)

Manny Gamburyan vs Rob Emerson
Sportsbook.com Odds

• Manny Gamburyan (-300)
• Rob Emerson (+220)

Jason MacDonald vs Demian Maia
Sportsbook.com Odds

• Jason MacDonald (+220)
• Demian Maia (-300)