[knicknut]

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There is something I dont understand and I cant find an answer at their site. Can anyone please explain for me?

Ok, for starters it says they take 2% from wins as their commission. That I can follow.

Here iswhat I am not sure about.

Here is the current line from their site.
Tennessee +2.5 -110
Denver -2.5 +109

If you bet $110 on Tenn and lose - does the bettor on Den get:
a)the $110 you bet - 2%.
b)the $100 he bet - 2%
c) the $109 shown as the line - 2%

I assume he gets the $109 - so does Matchbook take the $1 difference between the lines (-110 vs +109), as well as the 2% of $109.

Do I have it right?

Thanks

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No. (a) is closest. When you see -110 on Tennessee, that's because he put an order in for +110 on Denver, so a -110 on Tennessee would "match" it, he's putting up $100 at +110 for you putting up $110 at -110. So he put up $100 to win your $110, so he pays 2% of $110. He has nothing to do with the 109 line.

Hope that helps.