What happened to Randal Grichuk in 2019?

I saw this thread on Twitter last week about Randal Grichuk and how good he was in 2018.

I forgot how good Grichuk was in 2018 after returning from injury. Man, if he could just get back to being that guy…
— bk (@_bkuhn_) February 5, 2020

It’s easy to forget in that lost 2018 season just how good Grichuk was. He was one of the lone bright spots, tying for the team lead in WAR with Luke Maile. So what did Grichuk do in 2018 after he came back from injury on June 1st, which gave him success and what changed in 2019? When comparing his batted ball profile and plate discipline nothing major jumps out.
Year
LD%
GB%
FB%
O-Swing%
Z-Swing%
Contact%
SwStr%
2018 (June 1st-)
20.7%
34.9%
44.4%
36.3%
72.6%
70.9%
14.9%
2019
18.8%
39.1%
42.1%
36.4%
70.6%
74.3%
12.9%
Stats courtesy of Fangraphs
There are some minor changes, a few more line drives and flies and fewer grounders in 2018, some more contact in 2019, but overall similar. There is nothing that really explains the .061 drop in wOBA he saw between the two seasons. His strikeout and walk rates are very similar, as is his hard hit rate. His launch angle dropped just two degrees and his exit velocity was virtually unchanged. One small difference was where he …

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Author: Paul Berthelot / Blue Jays Nation

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