Zac Gallen (ARI) is tracked by the Bet Better model for MLB player prop betting. The latest model pick for Zac Gallen is Under 2.5 on Pitcher - Earned Runs. The model identifies a strong positive edge of +29.9% on this pick. Their next game is Arizona Diamondbacks vs Philadelphia Phillies on Sunday 12 April at Citizens Bank Park, Philadelphia. Review the full pick history and AI analysis above to inform your MLB betting strategy.