bazardo was acquired by the Seattle Mariners in a small trade just before the 2023 trade deadline, a move that drew little attention at the time but later became central to how the club built late-inning leverage in 2025.
What did Jerry Dipoto say the Mariners actually “unlocked” in Bazardo?
Seattle’s president of baseball operations, Jerry Dipoto, described the acquisition as the kind of deadline deal “nobody was paying attention to, ” while also emphasizing that the organization internally valued it far more than the public did. Dipoto said the Mariners’ staff saw two ingredients worth betting on: the spin on Eduard Bazardo’s breaking ball and a fastball that could be improved through what he called “seam optimization. ”
The adjustment, as Dipoto explained it, was not framed as a wholesale reinvention so much as a targeted re-shaping of what Bazardo already did. When he arrived, Dipoto said, Bazardo leaned more toward “four-seam ride” while spinning the breaking ball. Seattle then changed the breaking ball “a little bit” and placed a two-seamer “in his hand. ” Dipoto described the two-seam change as a grip adjustment designed to create more two-seam action.
Dipoto also connected the on-field results to work that happened away from game action: he said Bazardo’s velocity “ticked up” as a result of biomechanical programs put together by the Mariners’ staff. He underscored that the breakout did not come at the typical early-career stage, noting that Bazardo “wasn’t 22” when the impact arrived.
Which pitches drove the 2025 breakout—and what do the numbers show?
The story of Bazardo’s 2025 season, as Dipoto presented it, is a story of the two-seamer and the sweeper becoming foundational. Dipoto said those became the “go-to options” last season, and the performance indicators cited alongside his comments were unusually specific.
In 2025, the right-hander posted a 2. 52 ERA, struck out 82 batters, and led the Mariners bullpen with 78 2/3 innings pitched. He finished 5-0 with 12 holds while emerging as a key leverage reliever for Seattle.
The pitch-level results were presented as a kind of proof-of-concept for the change in fastball shape and the complementary breaking-ball tweak. On the two-seamer, the batting average and slugging percentage he allowed—. 151 and. 202—were described as the lowest among all MLB pitchers. On the sweeper, he allowed a. 177 batting average (sixth-lowest) and a. 292 slugging percentage (ninth-lowest). The sweeper’s plus-eight run value was cited as the highest among MLB relievers, with Baseball Savant identified as the source of that metric.
Dipoto’s framing tied those pitch outcomes to role and timing: he said Bazardo became “an impact guy” for the Mariners in leverage innings, using a “stuff set” that was developed over roughly a year and a half.
Why does this matter now—and what is the team saying about the stakes?
Dipoto’s comments made clear the Mariners view this as more than a single-player success story. The organization’s internal excitement about the acquisition was portrayed as immediate, rooted in what their evaluators believed could be developed. That matters because it suggests the value of the deal was not simply in the arm they acquired, but in the specific kinds of adjustments Seattle believed it could implement once Bazardo arrived.
Dipoto also highlighted a second dimension that teams cannot control: the player’s willingness to change. He said Bazardo “immediately bought in, ” and described the effect as “profound” on the Mariners. Dipoto added a candid assessment of what that could mean financially for the pitcher, saying it is likely to “wind up making him millions of dollars” by pitching at leverage points.
At a time when bullpen usage and late-inning matchups can hinge on small differences—movement profiles, comfort with a new grip, a breaking-ball tweak that changes how hitters react—Seattle is presenting the Bazardo arc as evidence that a low-profile acquisition plus precise development can become a major competitive lever. For the Mariners, bazardo is now the clearest example in this account of how a subtle pitch-design decision can reshape a season’s most pressured innings.
