A look at the Arizona Diamondbacks’ potential Opening Day starting rotation

What could the Arizona Diamondbacks' starting rotation look like at the start of next season?
Arizona Diamondbacks Zac Gallen (23) pitches against the Pittsburgh Pirates at Chase Field in
Arizona Diamondbacks Zac Gallen (23) pitches against the Pittsburgh Pirates at Chase Field in / Joe Rondone/The Republic / USA TODAY
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Jul 28, 2023; Phoenix, Arizona, USA; Arizona Diamondbacks starting pitcher Tommy Henry (47) pitches
Jul 28, 2023; Phoenix, Arizona, USA; Arizona Diamondbacks starting pitcher Tommy Henry (47) pitches / Joe Camporeale-USA TODAY Sports

Tommy Henry

Tommy Henry only made nine appearances in the 2022 season and posted both an ERA and FIP over 5.00. But Henry was given an extended look in the big leagues in 2023, and had it not been for left elbow inflammation that kept him out for most of the second half of the year, Henry may have been one of the Diamondbacks' starting pitchers during the playoffs.

In 89 innings, Henry owned a respectable 4.15 ERA, 4.88 FIP, and 1.36 WHIP. Henry's 1.21 HR/9 was roughly league average, but his 16.8% strikeout rate and 9.2% walk rate were both unimpressive at best. Still, Henry registered an 87.9 MPH exit velocity, 7.6% barrel rate, and 32.4% hard-hit rate. Henry's hard hit rate was in the 89th percentile, and both his exit velo and barrel rate were above average.

But there were still some red flags despite a solid ERA. Henry had a 5.40 xFIP, 5.29 SIERA, and 130 DRA- (95 ERA-). xERA was the only ERA estimator that pointed to relatively solid stats with an xERA of 4.33.

Still, Henry had an ERA+ of 105, making him a slightly above-average pitcher. Henry just needs to pitch like that again to make this one of the best rotations in baseball. That would make five Diamondbacks starting pitchers with above-average numbers in 2024.