BTCSportsBet is the sportsbook associated with their exchange. The hold is outrageous and unplayable.
I had to read up to see what "hold" is:
*For those interested, the hold percentage is configured by adding all of the implied probabilities for each team together. Implied probability is the percentage needed to break even over a long period of time at any given odds. For example, someone betting at +200 odds would need to hit exactly 33.33 percent of the time to break even. Therefore, the implied probability at +200 is 33.33 percent.
Once you’ve added all those up, it will result in a number like 120.62%. We’ll call that “x.” The hold percentage is then determined by using the formula 1 – (1/x).
Have you done (or could you do) a comparison to some of the others from this report?
-
http://www.beyondthebets.com/hold-percentages-which-books-in-vegas-offshore-are-keeping-the-most-for-themselves/Incidentally, you can fund a 5Dimes account with bitcoins using someone who will do an account-to-account transfer:
Fund your 5dimes.com acct (a leading casino/sportsbook/poker site) using bitcoin -
http://bitcointalk.org/index.php?topic=134599.0