Originally posted on 10/03/2012:

This entire conversation is one massive troll attempt and only continues because keep feeding trolls.. it is intentional trolling

#1 2007 post from Halifax

Quote Originally Posted by Halifax View Post
Why is grading this 2-teamer (with a Push / No-Action on one leg and a Loss on the 2nd leg) as a Loss so blatantly unfair to the player ? Because if the first leg of the teaser is a Push / No-Action, then the book basically gets a free roll against the player on the 2nd leg of the teaser ... that's why it's so unfair.
#2 Page 53 Conquering Risk: Attacking Vegas and Wall Street (Justin7's book)

Most sportsbooks will not usually look for fraud until a player attempts to cash out. If a fraudster plays and loses his balance, the book wins with no risk. When the fraudulent player wins, the book investigates and does not pay the player. This puts the sportbook in a free roll situation, where it can win the player's balance, but cannot lose.
#3 More Recent Post from Justin7:

to avoid the freeroll risk if they choose to void a bad-line wager after it loses"
#4 The Smart Money by Michael Konik (2006)

Here on page 96 the author defines it mid sentence when using it..

In this way the bookies can free-roll - have a shot at winning without any chance of losing - ...
#5 Gambling Wizards: Conversations with the World's Greatest Gamblers. Page 300 Defines it

free roll - proposition in which a player has no liability for losses, but some portion of the win.
#6 That Foreign Guy 2011 Post

Quote Originally Posted by That Foreign Guy View Post
The reason a lot of money disappears before an event goes in running (especially horse racing) is because in running events can be very voliatile and leaving bids / offers out there is giving the universe a freeroll at your expense.