Mets Bolster Rotation With Taijuan Walker
Two days after pitchers and catchers officially reported to spring training, the Mets augmented their rotation — which they’d already upgraded significantly this winter — by landing one of the top remaining free agents, Taijuan Walker. The 28-year-old righty agreed to a two-year, $20 million deal that carries a player option for a third year, making him just the fourth free agent starter this winter to secure a multiyear contract.
A former supplemental first-round pick (2010) and consensus top-20 prospect (2012-14) while with the Mariners, Walker has been beset by injuries for most of his major league career. Shoulder woes wiped out much of his 2014 season, while ankle, foot, and blister problems limited him to an average of 27 starts from 2015-17 with Seattle (the first two of those seasons) and Arizona. He made just three starts in 2018 before needing Tommy John surgery, and then sprained his shoulder capsule in May ’19 while rehabbing; he threw a single inning that year in a start on the final day of the season.
Given that litany, it rated as quite the pleasant surprise that Walker was healthy enough to make 11 starts totaling 53 innings in 2020; he did that while splitting his season between a return to the Mariners and an August 27 trade to the Blue Jays. His 2.70 ERA was outstanding, 38% better than league average; after posting a 4.00 mark through his five starts with Seattle, he delivered a 1.37 mark in six starts for the Blue Jays, who won five of those six games while qualifying for the expanded playoffs, though he did not get a chance to pitch in the Wild Card Series.
Alas, that sterling ERA was something of a mirage. Not only did it conceal seven unearned runs, for a still-respectable RA-9 of 3.88, but his 4.56 FIP was actually six percent worse than league average. Relative to the major league averages for starting pitchers, both Walker’s 22.2% strikeout rate and 8.4% walk rate were slightly subpar, while his 1.35 homers per nine, for as gaudy as it was, was slightly better than average.
Statcast-wise, Walker’s 88.4 mph average exit velocity and 7.2% barrel rate were both similarly middling, ranking in the 50th and 48th percentiles, respectively. His 32.9% hard-hit rate was up in the 74th percentile, his .325 xwOBA down in the 29th percentile. Just as his 1.86 gap between his ERA and FIP placed him second among the 71 pitchers with at least 50 innings last year, his 39-point gap between his xwOBA and .286 wOBA placed him in the 91st percentile among pitchers who threw at least 500 pitches last year, all of which suggests some amount of regression ahead. Read the rest of this entry »