As we enter Week 5 of the 2025 MLB season, it's time for fantasy baseball managers to reassess their rosters and consider potential waiver wire additions to gain a competitive edge. Notably, pitchers available in less than 50% of leagues present high upside options for points leagues.

Andrew Abbott of the Cincinnati Reds, rostered in 49% of leagues, has been impressive since returning from a shoulder injury, boasting a 1.64 ERA over 10 innings pitched. His pitch arsenal, particularly his changeup, shows promise. Next up is a matchup against the St. Louis Cardinals, making him a solid target for a waiver pickup.

Mitchell Parker from the Washington Nationals has a remarkable 1.39 ERA despite advanced stats suggesting regression. With the potential for a good trade value, he is another essential addition, especially with a forthcoming start against the Cincinnati Reds. David Peterson of the New York Mets has demonstrated great skills and an impressive ground ball rate, making him a valuable fantasy asset, especially against the Arizona Diamondbacks.

Lastly, Landen Roupp from the San Francisco Giants is on the radar as he possesses advanced stats indicating upside alongside his current roster percentage of 32%. Overall, these pitchers represent strategic opportunities for fantasy managers looking to improve their starting rotations.

Week 5 of the 2025 fantasy baseball season brings an intriguing slate of pitchers offering two starts, with key streamers available for managers looking to optimize their rosters. Among those over 50% rostered, Garrett Crochet and Jack Flaherty are solid options, while Gavin Williams and Reese Olson emerge as must-add streamers for their favorable matchups against struggling offenses.

Gavin Williams, despite previous challenges, has shown promise with a recent uptick in velocity and the return of his cutter, positioning him well against two bottom-tier offenses. Olson, fresh off a brilliant performance against the Padres, has also improved his pitch selection, making him a strong streaming candidate. Meanwhile, Andrew Heaney and David Peterson present riskier options due to their high strikeout potential, but also concerning underlying metrics. This week is pivotal for fantasy managers, and selecting the right pitchers could define the overall success of their teams.

In Week 4 of the 2025 fantasy baseball season, savvy managers are on the lookout for starting pitchers to enhance their rosters. This week features a mix of promising young arms and proven veterans. Mitch Keller of the Pittsburgh Pirates is recommended for his steady performance despite some inconsistency. Hayden Wesneski, recently traded to the Houston Astros, is showcasing potential with a strong strikeout rate, making him a must-add. Veterans Luis Severino and David Peterson provide reliable options for back-end rotation slots. For deeper leagues, Erick Fedde and Andrew Abbott are emerging as noteworthy picks, each showing solid statistical signs of potential breakout performances.

Francisco Lindor delivered a dramatic walk-off home run, his 250th, propelling the Mets to a thrilling 5-4 victory over the St. Louis Cardinals. The game was a rollercoaster, with the score tied multiple times before Lindor's heroics in the ninth inning sealed the win, giving the Mets a 2-0 lead in the four-game series.

Mark Vientos contributed significantly with a home run of his own and pivotal plays that kept the momentum alive for New York. The Mets rallied from an early deficit, showcasing their resilience, particularly during a series of tense moments that included a controversial baserunning call involving Luisangel Acuña.

The New York Mets struggled at the plate again, managing only one run in a 3-1 loss to the Oakland Athletics at Sutter Health Park. Despite generating some base traffic, the Mets only managed a sixth-inning home run from Brandon Nimmo, who cut Oakland's lead to 2-1. David Peterson pitched well, going six innings and allowing two earned runs, but he received little run support from the offense. The game marked the Mets' third loss in April, leaving them at 9-5 overall. J.T. Ginn's impressive sinker stymied the Mets’ lineup, leading to a disappointing end to their second game against the A's, who are finding their footing in Sacramento.