Michael Soroka's ERA says buy. His xERA says wait.

Michael Soroka’s current IL stint comes at an interesting time, as fantasy managers contemplate whether to hold the right-hander on their rosters.

The Diamondbacks starter is having a solid season after making some changes to his arm angle and pitching arsenal, and he has lowered his ERA to a formidable 3.07. However, his surface stats and underlying metrics aren’t tracking in the same direction, creating an intriguing fantasy case that requires a little extra digging.

Let’s dive in and get a better idea of how Soroka’s season is really shaping up, and how managers should react.

A Different Kind of Arm Angle

Soroka’s Statcast profile confirms that his pitching arm angle has gradually decreased over the last four seasons. He threw at a 41-degree angle in 2023, and that number has slowly reduced to 27 degrees in 2026.

The righty’s stockpile of pitches has also gotten a revamp over the last four seasons. Soroka has moved away from the sinker-heavy arsenal to favoring his four-seam fastball and a slurve, both of which he deploys 33% of the time.

Why all the changes? To combat command issues and regain the success he had in 2019 when he finished with a 13-4 record, 2.68 ERA, and 142-41 K-BB ratio.

The Walk Rate Is Real. The Strikeout Rate Isn’t Backing It Up.

The changes Soroka has made have yielded some positive results. They’ve also unearthed some red flags.

FanGraphs shows Soroka’s walk rate has improved, falling from 7.7% in 2025 to a career-low 5.1% in 2026 that ranks in the 95th percentile across the league. However, his strikeout rate has decreased from 25.1% last season to 23.7%. 

Additionally, his called-strike rate has slightly dipped from 17.96% to 17.1%, while his swinging–strike rate has stayed level over two seasons at 9.4%. Soroka’s hard-hit rate has improved from 40.4% to 34.1% this season, but his barrel rate has shot up from 6.7% in 2025 to 8.6% now.

All of this mixes for an interesting brew. Sure, Soroka has made improvements. But his dominance on the mound hasn’t made the leaps and bounds his lowered ERA suggests.

Why the ERA Is Ahead of the Skill Data

The most interesting contradiction in Soroka’s stat profile is the gap between his 3.07 ERA and 4.00 xERA. Having a higher xERA can simply mean a pitcher is outperforming expectations and coming in clutch. It can also mean said pitcher is getting help from his supporting cast.

Surface ERA doesn’t differentiate between a strikeout and an out where the ball is in play. And Arizona happens to have the highest fielding percentage in Major League Baseball. That means Geraldo Perdomo, Ketel Marte, and the rest of the Diamondbacks fielding unit are helping to keep Soroka’s ERA low.

The Fantasy Verdict, and What Would Change It

At this point of the season, Soroka is a hold-don’t-chase kind of fantasy candidate. He’s having a solid season and is a good starter to have, but fantasy managers shouldn’t be unloading valuable fantasy assets for him since his strikeout rate decreased. Owners in dynasty leagues should target him since his surface numbers have improved, but redraft managers shouldn’t unload other pitchers for him unless his strikeout rate improves over at least one month.  Answer all your late-summer roster questions with Athlon’s ongoing 2026 Fantasy Baseball coverage.

Questions About Michael Soroka, Answered

Should I buy Michael Soroka in fantasy baseball right now?

Not aggressively. Soroka has lowered his ERA to 3.07, but his underlying metrics are moving in a different direction. His strikeout rate has declined despite improved command, making him more of a hold than a player worth aggressively targeting in trades.

Is Michael Soroka’s arm angle change the same as other recent arm-angle stories?

No. Soroka has gradually lowered his arm angle over the past four seasons while also reshaping his pitch mix. His arsenal has shifted away from a sinker-heavy approach toward a four-seam fastball and a slurve, making this a long-term transformation rather than a single adjustment.

What is the biggest positive in Michael Soroka’s 2026 profile?

His improved command stands out the most. His walk rate has fallen from 7.7% in 2025 to a career-low 5.1% in 2026, placing him in the 95th percentile across the league and showing meaningful progress even as other indicators remain mixed.

What would change the fantasy outlook on Michael Soroka?

A sustained improvement in his strikeout rate would strengthen the case to value him more aggressively. For now, his lowered ERA alone is not enough to justify paying a premium, particularly in redraft leagues.