Week 21 fantasy baseball waiver targets lean toward speed, multi-position eligibility, and affordable power. Sal Frelick remains a surprise under-rostered asset, posting a .298/.361/.416 line with a pace for roughly 78 runs, 12 homers, 63 RBI, and 24 steals, while anchoring Milwaukee’s top-of-order role. Blaze Alexander has surged since Eugenio Suárez was moved, flashing 3B/2B/SS flexibility with 12.0+ barrel-rate indicators and a strong power-speed profile. Noelvi Marte sits at the heart of Cincinnati’s lineup surge, delivering 27 runs, eight homers, 36 RBI and seven steals in a pace that hints at 25+ homers and 20+ steals if given full plates. Chandler Simpson’s speed drives the category lead, with a .307 average across 287 PAs and 34 steals, making him a gold-mangled draftee in deep formats. Joey Ortiz has heated up to a .392/.436/.529 clip this month, pairing strong contact with dual 3B/SS eligibility. Nolan McLean debuts for New York, bringing a deep, six-pitch mix that offers upside in 12-team or deeper leagues. Hurston Waldrep has dazzled in Atlanta, with a sub-1.10 ERA across his late-season run and a splitter that continues to miss bats. The common thread is roster flexibility and year-end upside for managers chasing categories across AVG/OBP, power, and speed.

Three top fantasy baseball prospects make waves at Triple-A and are ripe for waiver-wire stashes or short-term pickups. Bryce Eldridge leads the charge for power in San Francisco’s system, with Nick Kurtz and Chandler Simpson offering power and speed dual-threats on the bench for Oakland and Tampa Bay. Kristian Campbell and Jhostynxon Garcia are heating up in Worcester, giving Red Sox managers a potential midseason boost at infield and outfield, while Campbell’s versatility and Garcia’s power-driven pace could unlock a late-season call to Boston. On the pitching side, Chase Burns and Jacob Misiorowski flash elite strikeout upside, presenting tantalizing streaming or keeper options if they seize opportunities in the second half. The piece weighs whether these hitters should be stashed in deeper formats or added in anticipation of a late breakout, and it underscores which players—like Kurtz and Simpson—offer the clearest paths to brief, impactful MLB stints.

The takeaway for fantasy managers is clear: target high-upside hitters with multi-position flexibility and keep an eye on the pipeline of pitchers who can generate swing-and-mmiss. Eldridge’s power ceiling amid SF’s lineup, Campbell’s burgeoning hot stretch with the WooSox, and Garcia’s torrid AAA numbers all point toward a possible surge, especially if Boston and San Francisco lean on depth as injuries and playoff pushes unfold. The article also highlights the strategic value of niche tools—BvP and PvB matchups, live injury reports, and closer depth charts—to time these adds and maximize upside in 12-team and deeper formats.

As we approach Week 18 of the MLB season, finding those diamond-in-the-rough players on the waiver wire can be crucial for fantasy baseball success. This week, hitters like Miguel Vargas of the Chicago White Sox stand out for his multi-position eligibility and run-scoring potential. Meanwhile, Mike Tauchman and Nathan Lukes are proving valuable contributors to their teams, with consistent performances in runs scored and batting average. The home run category sees Tyler O'Neill and Giancarlo Stanton as top pickups, both exhibiting power potential following their recent form. In terms of RBIs, Josh Jung has been a revelation since his call-up, while Mickey Moniak's resurgence with the Rockies adds another dimension. For stolen bases, Chandler Simpson and Colton Cowser are rising stars worth adding. Finally, Jordan Beck and Coby Mayo are making headlines for their batting averages, making them worth consideration in deeper leagues.

Week 16 of fantasy baseball presents an opportunity to bolster your lineup with low-rostered hitters who are showing promising production. Kyle Stowers, outfielder for the Miami Marlins, is turning heads with 19 home runs and a .911 OPS. After recovering from a mid-season slump, his exit velocity and hard-hit rates suggest a sustainable power surge.

Jurickson Profar of the Atlanta Braves is also worth a look, currently hitting .270 since returning from an 80-game suspension. With the Braves struggling, Profar's ability to replicate his previous All-Star success could be crucial for their playoff hopes.

Otto Lopez, a versatile infielder for the Marlins, is gaining traction with strong performance metrics, while Chandler Simpson has impressed as a rookie for the Tampa Bay Rays, contributing with elite speed on the bases. Finally, Colt Keith of the Detroit Tigers is emerging after a solid first half, showcasing an improved batting average and increased power potential. These players could provide valuable contributions for your fantasy roster.

In Week 17 of the 2025 MLB season, several hitters are emerging as fantasy baseball assets. Chandler Simpson holds the longest active hit streak at 16 games, showcasing his speed and potential for steals, yet remains under-rostered. J.P. Crawford is also heating up, boasting a 14-game streak and strong on-base skills. Roman Anthony has turned a slow start into a hot 9-game streak, crucial for the Boston Red Sox, while Byron Buxton's recent cycle highlights his offensive prowess despite injury concerns.

Further examining the batting landscape, Nick Kurtz has posted an impressive isolated power (ISO) of .714, signaling his potential for home runs, while Ivan Herrera is making waves as a catcher with stolen base capabilities, even after a long injury absence. Fantasy managers should also consider xwOBA leaders like Luis Garcia Jr. and Carlos Narvaez, who illustrate the variance in player performance versus expectations. This week’s report emphasizes the importance of tracking these trends to bolster fantasy lineups.