As the 2025 MLB season approaches the halfway mark, identifying key fantasy baseball contributors from the waiver wire is crucial. This week, players like Willi Castro and Javier Baez are racking up runs, with Castro hitting .319 and Baez contributing significantly in various positions. For power hitters, Ryan McMahon is proving his worth with six home runs this month, while Jo Adell continues to show promise with 16 homers this season. On the bases, Spencer Steer and Victor Scott II offer speed, and Ernie Clement is delivering a strong average with .380.

The fantasy landscape is evolving, with players like Casey Schmitt and Brooks Lee also emerging as valuable assets. As managers look to boost their lineups, these under-the-radar options could provide the necessary edge in the competitive fantasy landscape.