According to the search results, the Philadelphia Phillies magic number to clinch a playoff spot varies depending on the source and the specific playoff scenario. As of September 25, 2023, the Phillies magic number to clinch the top Wild Card spot in the National League and home field advantage in the opening playoff series is 2. However, another source states that the Phillies magic number to clinch a postseason berth is 1. It is important to note that the magic number can change based on the outcomes of other teams games. The Phillies are currently up 4.5 games on the Diamondbacks, five on the Cubs, and six on the Marlins.