Week 15 of the 2026 fantasy baseball season brings a fresh wave of talent that can tip the scales in tight matchups. Eric Cross, a veteran analyst, has curated a list of players rostered in less than 40% of Yahoo leagues, focusing on both batters and arms who are undervalued but trending upward.
Hitting Options
Jake McCarthy continues to deliver a .326/.361/.554 slash line in June, making him a reliable source of on‑base stability and speed. Tommy Edman, fresh off a injury comeback, has posted a .378/.451/.556 line across his first 51 plate appearances, signaling a full‑speed return to form. Kody Clemens is enjoying a career year with 14 home runs, 38 RBI and six stolen bases, while also offering multi‑position eligibility that adds flexibility to any lineup. Javier Sanoja has been a catalyst for the Miami Marlins, maintaining a .316/.338/.500 slash line over the past month and contributing at four different positions.
Pitching Options
Garrett Mitchell presents a mixed profile: a .265/.361/.452 slash line, seven homers and six steals, but a concerning strikeout rate that could limit his upside. In contrast, Ian Seymour has transitioned smoothly into the rotation, posting a 3.33 xERA, a 1.09 WHIP and striking out batters at a high clip during his last two starts, suggesting a breakout potential for the coming weeks.
Streaming these under‑the‑radar assets can provide a decisive edge as the playoff push intensifies. Monitoring their usage and recent performance trends will be key, especially for those who thrive in high‑leverage situations.