The Yankees are 16-2 straight up and 15-3 on the RL when Tanaka starts a game where the Yankees current line is a larger fav than the day before, which was larger than the previous game and where Tanaka's opponents lines did the exact opposite.
Example
The Yankees line is currently -195, it closed at -170 yesterday and -110 on the 30th.
The Jays line is currently +180 and was +160 yesterday and -102 on the 30th.
Bonus fun fact: Tanaka is 11-1 straight up and 10-2 on the RL in the exact same situation as above, but coming off of a win.
Baseball is a game of momentum!