Here is the list of tiebreakers that matter to the Boston Red Sox through the games of September 16, 2026. If these teams end up tied for a wild card berth or a division title, the winner of the berth is the one that holds the tiebreaker.
As you can see, the Red Sox tiebreaker with the Rangers in 2026 will be decided by the outcome of tonight’s game. Why? The explanation is not as simple as you might at first think.
If the Red Sox and Rangers end the season tied in the standings, the higher standing for the wild card is determined by their head-to-head record on the season. We call that the first tiebreaker. So far this season, the Red Sox have 2 wins and the Rangers 3 wins in their head-to-head matchups. So a Rangers win tonight gives them the tiebreaker.
If the Red Sox win tonight, however, each team ends up with 3 wins against each other, and the first tiebreaker no longer helps us, so then the second tiebreaker comes into play. This tiebreaker is based on record against your own division.
The Rangers have no more games to play against their own division this season, so they end their season with their current record of 23-29 within their division. The Red Sox are currently 24-25 against their division,with 3 games to play; the worst they could end up at is 24-28, which is better than the Rangers intra-division record. That gives the second tiebreaker to the Red Sox.
So there you have it. If the Red Sox win tonight, the first tiebreaker is a tie, and the second tiebreaker goes to the Red Sox. If the Rangers win, the first tiebreaker goes to them. So the winner of tonight’s game determines the tiebreaker between the Rangers and Red Sox.
The Baseballsphere Blog 