Here is alternative example with traditional seeding:
1 USA vs 5 World - 1 USA wins
2 USA vs 4 World - 4 World wins
3 USA vs 3 World - 3 World wins
4 USA vs 2 World - 4 USA wins
5 USA vs 1 World - 1 World wins
The world leads 3-2 at the end of the seeding round. The next steps would look like this:
1 USA vs 1 World - 1 World wins
The world leads 4-2 at this point. The next match is:
4 USA vs 1 World - 4 USA wins
The world leads 4-3. The next match would be:
4 USA vs 3 World - 3 World wins
The match concludes with a victory for the world, and they win the series 5-3.
We could also have the seeds play in reverse order. This would allow the top seeds to remain active until the final matches.