During a long 162 game season, many teams will mentally take a day off even though they have a game scheduled. When a team plays a division rival, they expend a lot more effort and energy into the game that they normally would not.

The type of games that require the least effort and energy are Interleague games. If we pit two teams together, one coming off a division rivalry series and another off an Interleague game, we undoubtedly see an advantage for the team coming off an Interleague game.

The propensity to mentally take a day off in this situation increases if they are coming off of a win. Adding that constraint to the trend, we see our system go 11-4, +7 units.

If the current game being played is a division rivalry game, we do not expect any letdowns or "mental days off". We were right, 6 of those 15 games were division rivalry matchups and the result was an even 3-3.

Thus, taking teams off an interleague game going against a non-divisional opponent off of

a win in a division rivalry series is 8-1. The opponent will likely take the day off mentally because they came off a division rivalry series where they spent a lot of effort, they are coming off a win, and because their current game is a less meaningful non-division rivalry game.

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