Originally Posted by
wantitall4moi
its simple math, in spread based sports you are paying more than even money to bet something that basically has an even money chance of happening. I know guys claim to have all sorts of edges and whatnot, but in the end the guys that show a profit are the ones that get lucky more often than not, and usually on games they have more than their usual amount bet on.
The simple proof to this is if they lined every single NFL game -3 and just adjusted the vig books would make a killing. Because obviously some game should be more than 3, but that doesnt mean the results will show that. So say a team should be -6 or -7, that team is -3 -150. Looks like a deal. But if the game was lined -3 people wouldnt know if it were a trap or not, and no one would pay -150 even if they thought it was supposed to be -6 or -7. (thats psychology not math) But psychology obviously plays into it. SO if they lined every game -3, then you would be seeing about a 16% push rate or so. At least that has been the results since 1989 874 games of 5451 have ended with one team winning by 3 points. So that gives you 85% to work with, the psychology factor, the luck factor, the adjusted vig and so on.
Just because a team is favored by 3 doesnt mean much. Just like it doesnt mean much if a team is favored by 10 or more. The only real issue would be how the books handled money lines.
Bottomline is math doesnt mean much in sports betting, unless you think that one of these extremely complex algorithms created to predict the probability of worldwide disasters or terrorist attacks will work. Math is best used to add up your wins and losses. Anything else is guesswork at best.
Past results dont predict future probability at least in sports. I have one of the most thorough databases around, and I have run every conceivable parameter and it just doesnt work. Mostly because the sample size, (even going back to 1989, actually 1994 when they put the 2 pt conversion back in) is just way too small. So you might see something that is 16-0, but is that enough to give it that big an edge? Guys who play trends and angles can tell you the answer to that one.
The only real way to make money consistently and long term is to basically become the book, as in, getting money both ways so as to insure a profits. Not easy to do especially in this day and age. Which basically reiterates what some have said, the 'market' is too immediate to find edges. But not edges in a number, but edges in the ability to get the best of both sides.