Ok. There's match play and "money play"

For "money play" each game is independent. If you're playing for one beer per point, you play a game, perhaps it ends with a gammon with the cube on 2. One player then owes the other four beers. You can then set the board up and play a second game, and maybe the other player wins a single point. Now there's only three beers owed. Sepeat until you've had enough, settle up when you are done.

In match play only the final result matters. You can wager on match play, let's say you stake one round of beer on the outcome. You play the match to seven, and the loser buys the next round regardless of whether the final score is 7-6 or 7-0 or even 16-0 (i.e. someone loses a gammon with the cube at 8 ) . That is, in match play, only the final result matters. This is true regardless of whether you are wagering on the outcome or only playing for fun. One point for a win with the cube at 1, two points for a win with the cube at 2 or for a gammon, four points for winning a gammon with the cube at 2, etc.