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John Foley
Twins rookies Alex Kirilloff and Trevor Larnach are showing they belong
2021-06-10
Alex Kirilloff (left), Trevor Larnach (right)Kirilloff: Brace Hemmelgarn / Minnesota Twins / Getty Images; Larnach: AP Photo/Tony Dejak
With the Minnesota Twins quickly running out of time to turn around a season that has seen their playoff prospects fade significantly, the focus for the organization will begin to shift away from contending now to preparing to contend in the future. In the increasingly likely event the Twins decision makers decide to turn the page on 2021, a great deal of attention will be paid to the upcoming July 30 trade deadline when many of the Twins’ veteran players will be made available to other teams in trade offers for young prospects that might be able to help the team in future seasons.
In addition to the trading deadline, the team will likely increase the playing time given to young players to give them a valuable development opportunity at the highest level. This will also give the Twins management an opportunity to evaluate them in the Major League environment.
A bright spot in that context is that the team is already getting a head start on evaluating two of their most highly regarded prospects. Thanks to a rash of injuries among Twins outfielders, corner outfielder/first baseman Alex Kirilloff (Minnesota’s #2 Prospect per MLB.com) and corner outfielder Trevor Larnach (#3 Prospect) are already nearly every day regulars in the Minnesota lineup. Not only are the two getting regular playing time, but through their first month or so of big league action, they are demonstrating that they belong.
Kirilloff, a 2016 first round pick out of a Pittsburgh area high school famously debuted during last season’s playoff series against Houston. This season, he served as the Twins’ 27th man for a doubleheader with Boston on April 14, giving him the rare distinction of being a player who took 7 MLB plate appearances before officially debuting on the Twins’ active roster. That debut would come on April 23. Now, Kirilloff has played in 30 games and split his time between the two corner outfield positions and first base. Altogether, through games played on June 9, he’s taken 117 plate appearances and provided a batting line (average / on base / slugging) of .255 / .291 / .436. By weighted on base average (wOBA), a comprehensive measure of offensive value, Kirilloff’s season long production checks in at .312, which is just a tick above the overall league average of .310. That is all the more impressive when you consider Kirilloff has also been playing through a nagging wrist injury that has limited his power and pulled down his overall numbers slightly.
Here are those estimated numbers compared to actual for both Kirilloff and Larnach:
In both cases, the quality of their contact more than supports their performance so far and, especially for Kirilloff, suggests they should have even better numbers.
As is often the case with rookie hitters who find success, opposing pitchers make adjustments to how they attack them. The primary way opponents are adjusting to Kirilloff and Larnach is by reducing how often they throw them fastballs. Kirilloff saw 47-48% fastballs in April and May. So far in June, that fraction has decreased to 34%. Larnach saw 51-52% fastballs in May and has seen only 40% fastballs in June.
In exchange, pitchers are offering them more breaking balls and offspeed pitches. Kirilloff was thrown 25% breaking balls in April, 37% in May, and now 45% so far in June. Larnach saw 24% of both breaking balls and offspeed pitches in May and those fractions have increased to 31% and 29%, respectively, so far in June.
There are good reasons for these adjustments. Both hitters have feasted on fastballs so far.
Kirilloff has hit .327, slugged .633, and delivered 9 of his 11 extra base hits off of fastballs. Against breaking balls, his average and slugging percentage are just .167 and all of his hits are singles.
For Larnach, the disparity is even more stark. He has batted .419, slugged .744, and produced all 8 of his extra base hits against fastballs. Against breaking balls and offspeed pitches, those numbers are .063 (both batting average and slugging) and .091 (both), respectively. More worrisome is that Larnach’s swing and miss rate (Whiff %) leaps from 19% against fastballs to 51% and 63% against breaking balls and offspeed pitches.
Both players are starting off from a wonderful place and finding early success. But, continued success is far from a guarantee. How well they adapt to the challenge of pitchers making adjustments in how they pitch them will dictate how successful they can be. For now, though, they've done nothing but show they belong.
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