Season Win Over/Under Bets - Can they be cashed early?

Season Win Over/Under Bets - Can they be cashed early? Have some baseball winners. Will they cash them early of do I have to wait until the end of regular season? This is at Hilton, Venetian, M and Lucky's
I think you might have to wait till 160 games are played or the season's end
Matchbook is cashing some overs early, but it's to their benefit to get the money churning again. Think you will have to wait at most places.
You can always ask the book

Unless something has changed, you have to wait. There is a date on your ticket for when you can cash it.
They usually have the condition that the bet is only valid if the team plays the specified number of games. Therefore, it's not a winner until all games are played. How tilted would you be when a winner gets pushed b/c of mother nature cancelling a final game of the season (and one that didn't matter to the standings, so they didn't make it up)
I don't think you can cash your Texans unders just yet. Oh wait, you said baseball, never mind :)
in vegas you have to wait til end of regular season