Week 13 of the 2026 MLB season brings a fresh wave of waiver wire opportunities, and fantasy managers are scouring the free agent pool for players who can tilt the balance of their leagues.
Week 13 Waiver Wire Spotlight
Spencer Horwitz, the Pittsburgh Pirates’ first baseman, enters the week with a solid overall production record, even though his recent stretch has shown a dip in output. His blend of on‑base skill and power makes him a compelling add for teams needing depth at the position.
Noelvi Marte of the Cincinnati Reds has been a swing‑and‑miss prospect, but a burst of June activity revealed three home runs and three stolen bases, hinting at a breakout that could materialize with more consistent playing time.
Cole Carrigg, now the everyday center fielder for the Colorado Rockies, has surprised many with a sudden power surge, launching three homers in a brief sample and providing a rare combination of speed and slugging for a middle‑of‑the‑order bat.
Colt Emerson, the Seattle Mariners’ shortstop, has cemented his role as the team’s everyday defender and is delivering unexpected pop, having logged six home runs over the past weeks while maintaining a steady defensive presence.
Tony Santillan, the Cincinnati Reds right‑hander, has tightened his grip on the closer role, posting a flawless stretch of six appearances without allowing a run, which should boost his save total and overall value.