Originally Posted by
Walter Sobchak
True, but NBA games aren't random events. They depend on the performance of individuals, where the games are played, whether anyone gets i jured, etc. If player X has shot a decent sample size of free throws and has made 80% of them, it is reasonable to say that the chance that player makes any given free throw is within a small tolerance of 80%.
It should be possible, in part by using historical data, to estimate an answer to the question "what are the odds a team comes back from 3-1 down in a playoff series?" Using data on the specific players and situation involved it should be possible to further refine the answer to be more accurate. I have no idea whether the bets mentioned in this thread are good bets but I think it is possible to determine whether they are good bets.
I agree with everything you just said. But simpdog wasn't betting on whether a team comes back from a 3-1 deficit. He was betting on whether a team, that had previously been down 3-1, would come back from a 3-2 deficit.
This might sound like splitting hairs, but it's a very different proposition. The series line for Chicago was -215 when the series was 3-2. Obviously that line was much different when the series was 3-1, for good reason. Maybe something like -450.
Before the regular season, the '07 Patriots are a huge dog to go 16-0. By week 17 you don't use the same line. At that point they're most likely a favorite.