Assessing Kevin Kiermaier’s Potential
If someone asked you to guess which right fielder provided the most value on the defensive side of the ball last year, the only logical answer is Jason Heyward. Heyward was so far above his compatriots that you almost wonder if he was simply not supposed to be a right fielder and that Fredi Gonzalez’s lineup card handwriting was somehow confusing the players and sending them to the wrong positions.
Heyward posted 32 defensive runs saved and a 24.1 ultimate zone rating in 1317 innings in right field. No one else was even in the ballgame, but if you had to guess who was second, it might be a little more difficult. Enter Kevin Kiermaier. Kiermaier’s 14 DRS and 16 UZR in right field landed him at second on a list of right fielders sorted by DEF, which is UZR and the positional adjustment.
DEF is a cumulative statistic, meaning more opportunities can lead to higher numbers. Heyward’s DEF was 17.3 and Kiermaier’s was 13.3, but Kiermaier played just 526.1 innings in right field last year. If you convert those marks to a rate statistic, say UZR/150, then Kiermaier rockets up to an insane 56.6 UZR/150 while Heyward settles just above 20. By the numbers, Kiermaier was the most dazzling defender we saw in right field last year.