Two months ago you would not have blamed anyone for cutting Caleb Durbin. A .163 average through May 24. A .479 OPS. A ground ball rate sitting at 58 percent, which is not a batting stance, it is a confession. Boston traded for him in a six-player deal last February, sending Kyle Harrison, David Hamilton, and Shane Drohan to Milwaukee to get him, and for two months it looked like the kind of trade a front office quietly hopes you forget by August.
Then somebody handed him a different swing.
Since May 28, Durbin is hitting .321 with a .945 OPS. He has gone deep eight times this season, seven of them in the last 30 days, the most on the entire Red Sox roster in that stretch. He also leads the team in OPS over that window, ahead of Willson Contreras, ahead of Rafael Devers, ahead of everybody. A guy who was fighting for playing time in May is now the best hitter on his own team, and this is not a hot streak you should be nervous about regressing. This is a repair job, and the receipt is sitting right there in the batted ball data.
Here Is What Actually Changed

Durbin started working with hitting instructor Lorenzo Garmendia at a private facility in Waltham, fixing a backward lean in his swing and cleaning up his hand position on inside pitches. Durbin's own description of the before and after says it plainly: the ball used to just go straight into the ground, and now it does not do that nearly as often.
That is not a vibes-based explanation. It shows up exactly where you would expect a real swing fix to show up. His ground ball rate has dropped from 58 percent to 41 percent. That is not a small wobble, that is a hitter who stopped beating the ball into the dirt and started actually getting it in the air, where doubles and homers live instead of routine groundouts to short.
Why This One Is Different From a Normal Hot Streak
Every fantasy manager has been burned by a two-week batting average spike that evaporates the moment BABIP comes back to earth. This has the opposite signature. When a guy's average jumps but his process stays identical, be suspicious. When his average jumps and his actual contact quality moves alongside it, ground balls down, power production up, that is not luck finding him, that is a hitter who fixed something mechanical and is now getting paid for it every time he squares one up.
There is also a role story underneath the swing story, and it matters just as much for whether this sticks. Boston did not have a clean path to everyday at-bats for Durbin in April. He was fighting for third base reps in a lineup still figuring itself out, and a .163 average is exactly the kind of number that gets a guy quietly platooned into irrelevance. Instead, the swing fix arrived before the leash ran out, and now the at-bats are simply his. That sequencing, production catching up right as patience was about to expire, is part of why this is a story and not a footnote.
One caveat worth saying out loud: his full season Statcast numbers, barrel rate and hard hit rate, still look modest, because two months of hitting the ball into the dirt drags a season average down no matter how good the last six weeks have been. That is not a red flag. That is just math catching up to a slow start. Watch the recent-window numbers, not the season aggregate, if you want to know who Durbin actually is right now.
The Fantasy Verdict

Christopher Hanewinckel-Imagn Images
Boston controls Durbin through 2031, and at this level of production there is no version of this roster where he sits. He is playing everyday third base, he still offers second base flexibility if your league counts it, and he is doing this while probably still sitting on waivers in a meaningful chunk of leagues, because nobody outside New England was watching a Brewers throw-in piece hit .163 in May.
Go get him now. The mechanism is documented, the results are real, and the price is still what it was before anyone noticed.
Questions About Caleb Durbin, Answered
Is Caleb Durbin's turnaround with the Red Sox real?
Yes. His ground ball rate fell from 58 percent to 41 percent alongside a documented swing change, which is the signature of a real mechanical fix rather than a batted-ball-luck hot streak.
What swing change did Caleb Durbin make in 2026?
He started working with hitting instructor Lorenzo Garmendia in Waltham, Massachusetts, fixing a backward lean in his swing and his hand placement on inside pitches.
How did Caleb Durbin start the 2026 season?
Poorly. He hit .163 with a .479 OPS and a 58 percent ground ball rate through May 24, putting his everyday role in real jeopardy.
Is Caleb Durbin worth adding in fantasy baseball right now?
Yes, if he is still available. He has the best OPS on the Red Sox over the last month, eight home runs on the season, and a documented mechanical explanation for why none of it should be expected to fade.
