For Luke Weaver, it has truly been the tale of two seasons.
The Mets’ one-inning relief specialist had a rough start to his 2026 campaign, posting a 7.20 ERA for April. That might as well have been a different lifetime, since Weaver went on a scoreless run through both May and June.
It’s one of the most dramatic turnarounds in the MLB this season, and the market hasn’t adjusted yet to Weaver’s current success. What does this mean for fantasy managers? Let’s dive into the stats to get the skinny on Weaver’s current fantasy value.
The Numbers: What the Turnaround Looks Like in the Data
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The monthly splits for Weaver are truly lopsided, even as you get down into the underlying metrics.
In April, Weaver’s 7.20 ERA over 10.0 innings pitched also carried a 5.53 xERA and .237 xBA, and he allowed a 41% hard-hit rate via Statcast. He kicked off the next month with a 17-pitch outing with two strikeouts and a groundball in a 4-3 win against the Angels. This started a scoreless run over 12.2 innings in May when Weaver posted a 0.00 ERA and his xERA dropped to 1.60, while his hard-hit rate decreased to 23%. He followed that up with a scoreless June over 11.1 innings pitched.
Why the change? MLB.com confirms Weaver has increased velocity on his fastball and better placement for his changeup since May 1. Weaver’s four-seam fastball velocity had dipped to 94.4 mph, down 0.7 mph from last season. The pitch has gained nearly 2 mph since then, eclipsing 96 mph into late June. That’s rare for a 32-year-old in the game, but is a surefire sign of improved pitching mechanics.
The underlying stats on the entire season are solid. Weaver’s hard-hit rate (31.5%), chase rate (34.6%), whiff rate (30.2%), and K:BB ratio (39:9) are all top-tier, showing he is allowing soft-to-medium contact when batters can make contact at all. His wOBA on the season (.206) is below his xwOBA (.260), which means his results are outperforming his elite contact suppression numbers.
The Concerns: Flags That Don’t Change the Turnaround, but Require Monitoring
All those fancy numbers suggest that Weaver is a must-add in fantasy. However, managers should be aware of a couple of red flags that aren’t deal-breakers but also can’t be ignored.
The first flag is a bit out of Weaver’s control: The Mets are in last place in the NL East and fired their manager on June 26. Bad teams generate fewer close-game late-inning situations, which impact save opportunities. Weaver is already behind Devin Williams in New York’s bullpen hierarchy, so he has more value as a holds guy than as a de facto closer. Although, the reliever-closer rotation could have a new flow under interim skipper Andy Green. None of this is a deal-breaker for Weaver as a fantasy candidate, but his place in the Mets’ bullpen scheme should be closely watched.
The other flag is the wOBA-xwOBA discrepancy. Yes, we previously said the gap is a good thing. However, that 54-point difference is the same type of massive gap that helps predict sell-high fantasy assets. Managers shouldn’t be too worried about Weaver’s wOBA normalizing in the second half of the season, since his underlying metrics and mechanics appear intact. But, watching for sustainability is a specific monitoring trigger all fantasy managers should set.
The Fantasy Value: What Weaver Is Worth In Which League Formats
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The market hasn’t caught up to Weaver’s early-season turnaround yet, and he is currently on fewer than 10% of fantasy rosters. This makes him a good add-now candidate in holds-heavy fantasy leagues before everyone else catches on.
Weaver isn’t an immediate add in standard 12-team saves-only leagues while he is serving as Williams’ setup guy, unless a waiver spot opens up and your roster needs the bullpen depth. He’s a good add in deep leagues because of his top-notch ratios and strikeouts.
Owners should keep an eye on the Mets’ bullpen situation into July to see if Weaver is in line for more save opportunities. Don’t forget to follow Athlon’s Closer Confidential each week for updates across the league.
Questions About Luke Weaver, Answered
What happened to Luke Weaver in the 2026 fantasy baseball season?
Luke Weaver struggled through April with a 7.20 ERA before putting together scoreless stretches in both May and June. His turnaround coincided with improved underlying metrics, including a lower xERA, reduced hard-hit rate, increased fastball velocity, and stronger contact suppression, suggesting the improvement extends beyond surface-level ERA results.
Is Luke Weaver worth adding in fantasy baseball?
It depends on the league format. Weaver is a strong add in holds-heavy leagues because he works in a high-leverage setup role behind Devin Williams. In standard saves-only leagues, his value is more limited unless a roster needs bullpen depth or his role changes later in the season.
What changed in Luke Weaver's performance?
Weaver's fastball velocity increased by nearly 2 mph after May 1, and MLB.com also credited improved changeup location. Those mechanical improvements were accompanied by better contact-quality metrics, lower hard-hit rates, and stronger overall performance throughout May and June.
What concerns should fantasy managers monitor with Luke Weaver?
Fantasy managers should monitor the Mets' bullpen usage following the managerial change and watch whether Weaver's wOBA continues to significantly outperform his xwOBA. Neither issue changes his current fantasy outlook, but both are worth tracking as the season progresses.
