When can a 69.4% Win Rate Result in a Loss of Almost 9 Units?

Tonight the Yankees have an opportunity to win the AL East with a victory over the Red Sox — and the odds of that happening are definitely in their favor. The Red Sox have actually been worse this September (7-21 record) than they were during last season’s historic collapse, and have been trotting out a glorified Triple-A lineup for the past several weeks.

Perhaps that explains why the Yankees are listed as -330 home favorites at Pinnacle. But how have these huge favorites fared historically?

Using our BetLabs software, we discovered that since 2004, favorites of -300 or greater have gone 68-30 for a win rate of 69.4%. Although that number looks impressive, betting every heavy favorite would have resulted in a loss of 8.83 units and a -9% return on investment.


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David Solar

David Solar has been the Content Manager at Sports Insights for over four years. He specializes in sports betting analytics and has created several popular data-driven betting systems. He can be reached directly at david@sportsinsights.com or on twitter at @TheDavidSolar.

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