Nationals starting pitcher's hot start raises interesting questions

Coming into 2024, Trevor Williams was something of an afterthought on the Nationals roster. But six weeks into the 2024 season, he has emerged as one of the more interesting members of the club, thanks to his utter dominance so far this year.

Entering the campaign, most baseball fans outside of the D.C. area probably weren’t thinking of Williams at all. Fans of the Nats were probably more excited about young players like MacKenzie Gore, James Wood or Dylan Crews. Williams was a veteran stopgap who didn’t draw much attention. He had some serviceable years in the past but struggled over 2019 and 2020, getting bumped into a swing role in 2021 and 2022.

The rebuilding Nationals signed him to a two-year deal going into 2023 with a $13M guarantee. They had traded away many of their most established players and needed a veteran innings eater. Patrick Corbin’s contract was aging incredibly poorly while young guys like Gore, Josiah Gray and Cade Cavalli had not yet been fully established at the big league level.

The first year of the Williams deal was quite unremarkable. He did take the ball 30 times and chew up 144 1/3 innings, but with a 5.55 earned run average. His 8% walk rate was around league average, but he struck out just 16.8% of batters faced and allowed 34 home runs.

After that performance, he didn’t even seem to be guaranteed a rotation spot on the 2024 club. Back in December, manager Dave Martinez said that Williams “right now is our fourth or fifth starter,” per Mark Zuckerman of MASNsports.com. That seemed to leave the door open to further additions bumping him out of the starting staff, but those never came. The Nats had a fairly quiet winter, which left Williams to open in the rotation alongside Gore, Gray, Corbin and Jake Irvin.

So far, that’s working out great for both Williams and the Nats. Through seven starts and 36 2/3 innings, he has just a 1.96 ERA. His 21.1% strikeout rate is still a bit below average but is a big jump from last year. He’s getting ground balls at a 49% rate and hasn’t yet allowed a home run this season.

There are some caveats to keep in mind here. Seven starts is obviously a small sample size, and it’s incredibly unlikely he can continue posting results this strong. His .270 batting average on balls in play and 79.5% strand rate are both a bit on the fortunate side, as his 0% home run per fly ball rate. His 2.50 FIP and 4.04 SIERA both suggest he hasn’t been quite as good as the 1.96 ERA might make you think.

Perhaps this is just a lucky stretch and regression is just around the corner. This kind of strong performance in a small sample isn’t unprecedented with Williams. Using the Baseball Reference Span Finder shows that his most dominant stretch of seven starts came with the Pirates in 2018. He finished that season particularly strong, with a 2.33 ERA in July, 1.16 in August and then 2.20 in September/October.

But there are also reasons for optimism, particularly since Williams changed his pitch mix by adding a sweeper. According to Statcast, he first threw the pitch last year but only 73 times, 2.8% of his pitches thrown with five other offerings coming in more frequently. But he’s up to 101 sweepers this year, a 17.9% clip. His four-seamer is still his go-to at 205 thrown, but the changeup is second at 103, meaning the sweeper is neck-and-neck with the change for his primary offspeed offering.

The results have been excellent so far, with opponents hitting just .167 against the sweeper and whiffing at a huge 41.2% rate. Even the Pitching Ninja is taking notice. By throwing more sweepers, he’s been able to throw fewer four-seamers and curveballs. As mentioned, the four-seamer is still his primary pitch, but he’s dropped the usage from 43.2% to 36.4%, while his curveball has gone from 6.9% down to just 0.5% this year. Of the 34 home runs he allowed last year, 21 of them were four-seamers and three more were curveballs, leading to respective slugging percentages of .563 and .629. Throwing them less was surely wise and has been paying off.

Changing up the mix seems to be throwing hitters off. Williams had a 10.2% barrel rate last year that is down to just 4% here in 2024. Last year’s average launch angle of 15.9 degrees is down to 11.5, which aligns with his increased ground ball rate and his refusal to let the ball leave the park. His results on his changeup and sinker have also been better than last year, perhaps due to the sweeper giving hitters something else to think about.

Again, regression is likely coming because he’s had a bit of luck so far. The league will also surely adjust to his new repertoire, which should lessen his ability to flummox batters with his arsenal. But even if he steps back from this ace-like performance a bit, it could still have impacts for him and the club.

Williams will be heading back out to free agency this winter and improved numbers will naturally lead to more interest and more earning power. His contract will be limited by his age, since he’ll be going into his age-33 season. But pitchers can still find decent money at that age or older, as shown in the MLBTR Contract Tracker.

Williams won’t be able to get near established aces like Jacob deGrom, Max Scherzer or Justin Verlander. But Seth Lugo’s trajectory isn’t terribly dissimilar from that of Williams. Lugo was bumped from starting into a relief role for a while, spent a year with the Padres re-establishing himself as a legit starter and then secured a three-year, $45M deal with the Royals going into his age-34 season. Tyler Anderson got a three-year, $39M pact after a breakout in his age-32 campaign while guys like Marcus Stroman, Nathan Eovaldi, Jose Quintana, Nick Martinez, Ross Stripling, Kenta Maeda and Alex Cobb secured two-year deals between $20M and $37M.

Of that group, only Anderson and Eovaldi received qualifying offers. Stroman and Cobb received QOs earlier in their careers and were no longer eligible, and Quintana wasn’t eligible prior to signing his Mets deal since he was traded in the prior season. But Lugo, Martinez, Stripling and Maeda were allowed to hit free agency without a QO. That perhaps suggests Williams is a long shot to get one himself, even if he continues putting up good numbers, but Anderson’s situation shows it’s at least something the Nats may consider. Anderson had a 4.62 career ERA before breaking out with the Dodgers in 2022. He posted a 2.57 ERA, got the QO and still found his aforementioned three-year deal from the Angels, netting the Dodgers an extra draft pick.

Putting over $20M on the table for a guy they just signed to $13M over two years, a deal they undoubtedly regretted halfway through, would be a big risk for the Nats. But they also have almost nothing on the books thanks to their ongoing rebuild. Corbin’s ill-fated deal is finally done after 2024, and Strasburg’s retirement allowed the club to pay out the remainder of his deal with deferred payments. Joey Gallo’s deal has a buyout on a mutual option. Keibert Ruiz signed an eight-year extension with a low average annual value, and that’s it in terms of future commitments.

Of course, the qualifying offer decision will only have to be made if he lasts all year with Washington. The club is currently 18-18 and still in the thick of the National League wild-card standings, but the Nats have a -8 run differential and are just 5-9 against teams that are above .500. Based on their poor results in past seasons and the fact that they weren’t really expected to compete this year, it’s entirely possible that they slip back in the coming months.

If that happens, then it’s far more likely that the Nats simply trade Williams for whatever he can fetch at the deadline. The return likely wouldn’t be huge for a 32-year-old rental, but pitching is always in demand, and he will find interest if he continues pitching well. That scenario would be good for Williams, allowing him to pitch for a team in contention while also taking the QO off the table.

There are still many ways this could play out and many factors that will play a role in the path forward. Can Williams keep this up or will the league adjust? Will the warm summer air simply allow more balls to cruise over the fence? Will the Nats hover around the wild-card race or will they fall out of it? Time will provide the answers to those questions, but the fact that Williams is even this interesting is quite remarkable, considering where things stood about six months ago.