My valuations suggested that the Phillies were the most undervalued team last night based on the overnights and opening line. The market has done a good job correcting the pricing inefficiencies in this one by bidding up the ask on the Phillies by nearly 20% off the open. However, in my opinion, because of the large mispricing on the open, there may be some excess value left on the Phillies up until first pitch.
Oddsmakers have had a hard time valuing Happ all season and who can blame them. He is not terribly heavily touted, and was pitching above true form for a rather long period of time. After three starts that suggest significant regression, books are now confused where to price him. However, he is a materially better pitcher than Mills right now. This is not a good match up for Mills, as his high propensity for allowing baserunners can lead to difficulty against a patient and powerful lineup.
Don't put too much stock into recent productivity at the plate. The Jays have an inferior lineup, and a good portion of the recent increase of productivity at the plate can be attributed to randomness and facing sub par pitching. Normalizing the latter suggests the Jays hot streak is not terribly sustainable. Rolen is out as well.