Can Rowdy Tellez Get More By Swinging Less?

Rowdy Tellez has stopped swinging. Not entirely; he’s tied for ninth in the National League with 12 home runs and 20th with a .494 slugging percentage. But this year, the Brewers slugger has cut at just 35.3% of all pitches, the second-lowest rate in baseball after the famously choosy Juan Soto. It’s uncharacteristic of Tellez, representing an eight-point drop from last year and a 13.2-point drop from his 2021 campaign. The new approach has done wonders for his chase rate: his O-Swing%, which was 35.2% in 2021 and 31.0% in 2022, is now 33rd in the majors at 25.9%. And while he’s never been a terribly impatient hitter, cutting back on swings at bad pitches has meant a rising walk rate, which isn’t quite Soto-esque at 12.0% but is a marked improvement from his 7.1% rate two years ago. That alone will get you on base an extra 30 or so times over a full season.
Tellez started to change his approach last year, swinging at fewer and fewer pitches than he had through the first three-plus seasons of his career. For most of his time in Toronto, he offered at somewhere between 48% and 50% of pitches he saw, but right around the time he was dealt to Milwaukee in 2021, he got a fair bit more aggressive with pitches over the plate, cutting at 73.9% of strikes and just 34.5% of pitches outside the zone. Since then, the aggression at the plate has given way to radical levels of patience:
Now, stop me if you can guess what the problem with never swinging the bat is: he’s taking a lot more strikes. While everyone else in the league is swinging at a majority of the pitches they see in the zone, Tellez is offering at just 47.4%, nearly seven points lower than any of his contemporaries. If he keeps this up, he’ll be the first qualifier to swing at less than half of pitches in the zone since David Fletcher in 2019 and ’20. In the 22 seasons of our Z-Swing% data, his 47.4% rate would be second-lowest over a full season, beating only Brett Gardner’s 44.8% in 2010. Read the rest of this entry »