Michael Lorenzen Is a Royal Again, This Time by Choice

Peter Aiken-Imagn Images

Michael Lorenzen is finally staying put. After signing one-year deals ahead of the last three seasons, and after getting traded at the deadline in each of the last two, the right-hander has played for six teams in four years. All that stops now. On Monday, a day when the temperature in Kansas City peaked at a balmy five degrees Fahrenheit, Lorenzen decided that the City of Fountains was a fine place to spend at least another half of a baseball season, agreeing to sign with the Royals on yet another one-year deal. For the first time since 2021, he’ll get to start a season in the same city where he ended the previous one. The deal is for $5.5 million plus performance escalators, and because of a $12 million mutual option for 2026 with a $1.5 million buyout clause, the guaranteed value comes to $7 million.

Despite a hamstring strain that cost him a month, Lorenzen excelled after being traded to the Royals at the 2024 deadline. In six starts and one relief appearance, he ran a 1.57 ERA over 28 2/3 innings. However, his peripherals were roughly the same before and after the move, and he mostly benefitted from the classic culprits of an unsustainable bounce: a .213 BABIP, an 89% strand rate, and a 6% HR/FB rate. The only notable change he made in Kansas City was ditching his regular slider entirely in favor of his sweeper. Over that short sample size, the move worked: The slider ran a 24% whiff rate in Texas, while the sweeper was at 41% in Kansas City.

I’m afraid I’m not done raining on Lorenzen’s parade just yet, because I have to tell you that this move terrifies me a bit. Between Texas and Kansas City, Lorenzen ran a 3.31 ERA, his best mark since 2019, when he put up a 2.92 mark as a reliever with the Reds. However, the underlying metrics were downright scary. Lorenzen’s 4.58 xERA, 4.89 FIP, and 4.95 xFIP were all his worst marks since his rookie season in 2015. The stuff models didn’t love him either: We have stuff numbers going back to 2020, and Lorenzen’s 5.10 predicted ERA from Pitching Bot and his 95 Stuff+ score were both the worst they’ve been over those five seasons. His 23.9% chase rate was the lowest of his career. His strikeout rate ticked up a tiny bit from 2023, but both it and his walk rate were among the worst of his career. Lorenzen’s four-seamer performed well, but it lost half a tick and a bit of movement. After his sinker spent the 2023 season flirting with the dead zone, in 2024 it decided to move in. Name a stat – other than BABIP, HR/FB, or strand rate – and Lorenzen was worse than his career average.

I’m sorry. That was a lot of negativity. I don’t necessarily think that Lorenzen is a lost cause, and a reunion with the Royals makes a lot of sense. They needed someone to replace the innings they lost by trading Brady Singer to Cincinnati. Also, even when he was at his best, Lorenzen routinely outperformed his peripherals. He was much more of a contact manager than a strikeout pitcher, and there’s no place better for such an approach than Kauffman Stadium. Entering his age-33 season, he no longer has above-average fastball velocity, but he throws the kitchen sink – four-seamer, sinker, changeup, cutter, slider, sweeper, curveball – and he’s still figuring out how to optimize the mix. In 2024, he brought back the cutter and curve, which he’d previously abandoned; the curve worked well and the slider didn’t. That’s useful information. He could keep throwing the sweeper more. He could stand to throw his changeup, which ran a 37% whiff rate, more as well. He also brings versatility, as he’s spent his career hopping between the rotation and the bullpen.

Speaking of versatility, there’s also the odd circumstance of Lorenzen’s two-way ambitions. He came up both a pitcher and a hitter after posting an .869 OPS with 41 home runs at Cal State Fullerton, and he has 147 major league plate appearances under his belt. A few weeks ago, Ken Rosenthal detailed a plan hatched by Lorenzen and his agent. Lorenzen would take a kitchen sink approach to free agency as well, pitching himself as a candidate to qualify as a two-way player, thereby giving his team (or, more likely, the team that trades for him at the deadline) an extra roster spot for a pitcher.

While it’s fun, the gambit was always a bit farfetched, and now that Lorenzen is returning to the Royals, it seems extremely unlikely to happen. In order to qualify, Lorenzen would need to get at least three PAs as a DH or a position player in at least 20 games. Lorenzen ran a .640 OPS in the minors, he has a career wRC+ of 84 in the majors, and he’s taken just two plate appearances over the past five seasons. Even when he was hitting, he never made it to 60 PAs in a season. The Royals just made it to the ALDS last season, and they are, in their own way, showing every indication that they intend to return to the playoffs in 2025. It’s hard to see them giving 60 PAs to a guy whose last hit came in 2019.

This is not a particularly risky move either for Lorenzen or the Royals. He’s back on a one-year contract, back in a pitcher-friendly park, and back playing for a team with which he had some success last season. The worst-case scenario is that the Royals don’t return to playoff contention and Lorenzen doesn’t pitch well enough (or hit enough, period) to get traded to his seventh team in five years. The best-case scenario involves Lorenzen throwing a couple more no-hitters and launching a couple more bombs. Of course, that worst-case scenario is far more likely than the best one, but either way, the possible benefits of this reunion far outweigh the potential pitfalls.





Davy Andrews is a Brooklyn-based musician and a writer at FanGraphs. He can be found on Bluesky @davyandrewsdavy.bsky.social.

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basically baseballMember since 2024
3 months ago

Still seems crazy that Severino got $22 million a year and Lorenzen essentially $7.

Shirtless George Brett
3 months ago

Severino was very good (he was a 5 win pitcher in 2017 and 2018) until injuries sidelined him for 2+ years. Lorenzan has never been anything remotely close to that. Severino is also 3 years younger than Lorenzan.

$22 million for a 30 year old, 2 WAR starter who could potentially be better is pretty reasonable. The Royals are paying Wacha like $17 million to be essentially an older Severino.

StatmanjackMember since 2024
3 months ago

Not sure pitcher WAR is the best way to measure the difference in value. It really just says that Sevy is more in control of his own destiny than Lorenzen, in a vacuum. But since Lorenzen is in KC, he’s going to probably see less of an impact, even if he has fewer Ks and allows harder contact. Love him with Lugo, Wacha, and Ragans!

Last edited 3 months ago by Jack Trent Dorfman
Shirtless George Brett
3 months ago
Reply to  Statmanjack

WAR is just an easy catch all. Especially when the gaps are huge. You can pick whatever stat you want, it tells the same story. Severino is a younger pitcher who is clearly better and has a higher ceiling.

I mean, its not even guaranteed that Lorenzen winds up in the rotation in KC. They are gonna have Marsh, Bubic, Wright and Lorenzen competing for 2 rotation spots. And Lorenzen is the only guy on that list who was a reliever most of his career.

In fact I would even say you have 3 guys competing for one spot because if Wright is healthy (which sounds like he is) he is going to start.

Last edited 3 months ago by Shirtless George Brett
noiroMember since 2017
3 months ago

My bet is that Wright will not be a starter at the beginning of the year. They are going to go slow with him. They traded for him to be good, they will give him all the time he needs to heal first.