In baseballese

Instead of measuring the game in terms of innings which only end with 3 outs, they measure the length of a game in terms of pitches so that a game takes a lot less time. Each team has, say 50 pitches to score as many runs as possible. If you score a run, you get to carry on batting, but if you're out, you're out for the whole of the innings. If your whole team is out before the 50 pitches are up, too bad.

At the end of the 50 pitch/all out inning, the other team have a maximum of 50 pitches to try and score more runs than you did. If they beat your score in 50 pitches or less they win, if they don't, you win.

If you're tied (and it's a knockout match so you need to find a winner), you go to a mini inning each of, say, 5 pitches. If it's still a draw, pluck up some arbitrary rule such as 'most home runs' to split them (and run away from any New Zealanders).