Vikings: 2 different games will be 2 completly different matchs.

What happens in one of the games has nothing to do with the other game.

So for example a tournament is set up for the 2 game match backgammon, with the 5 point cube.

Player A will get 2 games - both worth 5 points each with player B. If they are in danger of losing one, and winning the other - there would be no advantage to just slowing down on one.