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Old 12-08-2005, 02:38 PM
BottlesOf BottlesOf is offline
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Default So how did the Books lose?

In today's NYPost, they report that sports books lost a record $563M (estimated) on this past weekend's NFL games, because 12 of 16 underdogs won.

Can someone explain why this would aversly affect the books? Don't betting lines change to keep an equal amount of action on both sides of every wager? I understand that's not a perfect science but they have to come close, don't they? Also, why would it matter that 12 of 16 underdogs (as opposed to favorties) won? Wouldn't it stand to reason that on some games there was slightly more action on the dog, and on others, slightly more on the fav?

Confused,

JBB
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Old 12-08-2005, 02:42 PM
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Default Re: So how did the Books lose?

[ QUOTE ]
In today's NYPost, they report that sports books lost a record $563M (estimated) on this past weekend's NFL games, because 12 of 16 underdogs won.

Can someone explain why this would aversly affect the books? Don't betting lines change to keep an equal amount of action on both sides of every wager? I understand that's not a perfect science but they have to come close, don't they? Also, why would it matter that 12 of 16 underdogs (as opposed to favorties) won? Wouldn't it stand to reason that on some games there was slightly more action on the dog, and on others, slightly more on the fav?

Confused,

JBB

[/ QUOTE ]

12 of the 16 underdogs lost.
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  #3  
Old 12-08-2005, 02:49 PM
BottlesOf BottlesOf is offline
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Default Re: So how did the Books lose?

Not according to the article. But even if that were the case, why would it matter?

"National Football League underdogs throew bookies to the wolves this weekend, winning 12 out of 16 games and showering gamblers with cash."
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  #4  
Old 12-08-2005, 02:56 PM
tech tech is offline
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Default Re: So how did the Books lose?

[ QUOTE ]
Don't betting lines change to keep an equal amount of action on both sides of every wager?

[/ QUOTE ]

In a word, no. Books really want to maximize their hold %, which does not always include balanced action. On NFL games, the majority of action at Vegas books is on favorites, and there is a limit to how far you can move the line to encourage underdog action without really exposing yourself to a lot of risk. For more details, check out Roxy Roxborough's book about managing a sports book.
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Old 12-08-2005, 02:59 PM
BottlesOf BottlesOf is offline
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Default Re: So how did the Books lose?

I'd be curious to know what % of action goes on NFL favorites, on average. However, in this case, b/c the dogs won, wouldn't the books be paying out less?

I will def. check that book out though for more info.
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  #6  
Old 12-08-2005, 02:59 PM
Moneyline Moneyline is offline
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Default Re: So how did the Books lose?

The article has it wrong. Most NFL underdogs lost last week, as they have been doing for just about the entire season. Since most NFL action comes down disproportionately on favorites, the books stand to lose money when many favorites win, and win money when mostly underdogs win. The juice is not enough to guarantee profit regardless of the outcome.
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Old 12-08-2005, 03:02 PM
Moneyline Moneyline is offline
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Default Re: So how did the Books lose?

Looks like a chimed in late on your last question... maybe I can win the race this time. [img]/images/graemlins/wink.gif[/img]

Anyway, to answer your question, you can find out how much action is being placed on teams from several sources. One is from wagerline.com under the "scores and odds" heading. Several books themselves also make this information public, sportsbook.com and canbet are two examples of this.
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  #8  
Old 12-08-2005, 03:06 PM
tech tech is offline
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Default Re: So how did the Books lose?

Yeah, dogs have been getting killed in the NFL this year, thus books have been getting killed also. One more point about not having balanced action -- the basic idea (Stanford Wong's book has a good example of this also) is that if I know people are going to bet the favorites anyway, it increases my EV to shade the favorites a little bit, even if the action is unbalanced. If you have deep pockets to weather the downturns, this will increase your returns in the long run as a sportsbook, even if it does increase short-term variability.
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  #9  
Old 12-08-2005, 03:07 PM
NoChance NoChance is offline
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Default Re: So how did the Books lose?

This is also another reason I blindly follow the Unranked vs Ranked trend in NCAAB. I firmly believe that when the opening line comes out, I already have been given a couple "value" points from where the line actually should be and they can afford to take a position and give themselves an extra point or two. Vegas knows people love betting on ranked teams. I am guessing they have tons of betting trends they take into consideration when making lines. I am quite sure they push these advantages knowing which way the public will "probably" bet. This example is probably just one of a hundred different situations that are considered when creating the lines. It's not always about equal action on both sides. They can take a "slight" position to push their advantage based on betting trends.
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  #10  
Old 12-08-2005, 09:49 PM
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Default Re: So how did the Books lose?

[ QUOTE ]
In today's NYPost, they report that sports books lost a record $563M (estimated) on this past weekend's NFL games, because 12 of 16 underdogs won.

Can someone explain why this would aversly affect the books? Don't betting lines change to keep an equal amount of action on both sides of every wager? I understand that's not a perfect science but they have to come close, don't they? Also, why would it matter that 12 of 16 underdogs (as opposed to favorties) won? Wouldn't it stand to reason that on some games there was slightly more action on the dog, and on others, slightly more on the fav?

Confused,

JBB

[/ QUOTE ]

Another reason this ended up being the worst NFL weekend on record is the amateur bettors who've played favorites successfully since week 5/6 were so flush with cash that they continued upping the ante this week with the same strategy and hit huge.
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