The Diamondbacks announced that they have agreed to a five-year contract extension with right-hander Brandon Pfaadt. It runs from 2026 through 2030 with a club option for 2031 and a mutual option for 2032. The righty is guaranteed $45MM, reports Nick Piecoro of the Arizona Republic. Per John Gambadoro of 98.7 FM in Phoenix, the club option is worth $21MM and the mutual option $25MM. Per Robert Murray of FanSided, there’s limited no-trade protection from 2030 to 2032. Per Gambadoro, that no-trade covers five teams. Pfaadt was previously slated for free agency after 2029, so this buys out at least one free agent year. The club option extends the club’s window of control by another season.
Per Murray, the full breakdown is as follows: Pfaadt gets a $2MM signing bonus followed by a $3MM salary in 2026. His annual salaries then jump to $5MM, $8MM, $11MM and $15MM. The $21MM club option and the $25MM mutual option each have a $1MM buyout.
Pfaadt, 26, was a fifth-round selection of the Diamondbacks in 2020. He quickly raised his stock with some strong minor league numbers. In 2021, he tossed 131 2/3 innings over 22 starts, spread across Single-A, High-A and Double-A. He had a combined 3.21 earned run average, 30.2% strikeout rate and 5.3% walk rate. In 2022, it was 167 innings split between Double-A and Triple-A with a 3.83 ERA, 31.6% strikeout rate and 4.8% walk rate.
Going into 2023, he was considered one of the top prospects in baseball. He made his major league debut that year with 96 innings over 18 starts and one relief appearance. The 5.72 ERA doesn’t look amazing at first glance but Pfaadt’s 22.3% strikeout rate was around league average with a strong 6.2% walk rate. He held a spot in the rotation through the playoffs, making five postseason starts with a 3.27 ERA as the Diamondbacks took the National League pennant.
2024 was his first full season in the majors and he again performed better than his ERA would tell you. He allowed 4.71 earned run per nine over his 32 starts and 181 2/3 innings. His 24.3% strikeout rate and 5.5% walk rate were both strong numbers.
At this point, Pfaadt has a 5.06 ERA in 277 2/3 innings but that doesn’t tell the whole story. As mentioned, his strikeout and walk rates have been good. His .315 batting average on balls in play and 66.4% strand rate are both on the unlucky side. His 4.15 FIP and 3.86 SIERA point to him being roughly one run better than his ERA.
The Diamondbacks are presumably putting more stock in those under-the-hood numbers in committing to Pfaadt today. He was previously set to hit the open market after his age-30 season but they have instead locked him up through his age-31 season with a club option for his age-32 campaign as well.
Looking at MLBTR’s Contract Tracker, there have been a few recent extensions for pitchers in their pre-arb years. The top of the list has guys like Spencer Strider at $75MM, Brayan Bello at $55MM and Hunter Greene at $53MM. Those guys were all younger than Pfaadt is now and Greene also had the hype of being a second overall pick and high-profile prospect. Strider was just wrapping up a 2022 season with an insane 38.3% strikeout rate.
Pfaadt’s $45MM deal comes in just a hair under Tanner Bibee’s recent $47.2MM deal. That’s understandable since Bibee has a 3.25 ERA, 25.3% strikeout rate and 6.9% walk rate in 315 2/3 innings. Those numbers all put him a bit ahead of Pfaadt. He’s also a year closer to free agency, which gives him a bit of extra earning power.
More to come.
