Week 20 of the 2025 MLB season brings a targeted waiver-wire boost across five standard fantasy categories. Three solid options per category provide a mix of power, speed, and average help for shallow rosters. Key names to grab: Lenyn Sosa, Noelvi Marte and Luis Rengifo bolster Runs; Colson Montgomery, Matt Shaw and Kyle Manzardo supply Home Runs; Spencer Steer, Drake Baldwin and Blaze Alexander drive RBI; Bryson Stott, Andres Giménez and Jakob Marsee add Stolen Bases; Isaac Collins, Ernie Clement and Miguel Andujar push Batting Average. Rostering notes highlight multi-position eligibility and recent August upticks, making these plays viable streamers with strong rest-of-season upside.

These adds come with context: many carry at 35-50% ownership and are stepping into lineups with daily playing time or versatile infield/OF roles. Use them to shore up depth in counting stats while balancing risk in shallow leagues. The list emphasizes players with hot months and clear paths to plate appearance, elevating the chance of contributing across Weeks 20 and beyond.