After 11 innings call it a suspended tie, then whoever wins the next game between the two teams will get 2 wins. If it's the last game then whoever gets a win and the other team loses, it gets added there.
For example: Detroit and NYY end their final game in a tie.
Next game Detroit vs CHW, Detroit Wins. Next game NYY vs. BOS, NYY wins. Nothing changes. Next game Detroit wins againsg CHW, NYY loses to BOS, then that final game between DET and NYY goes in favor of DET.