Curious Case of Jake Arrieta’s 2016 Pitching Mechanics
Jake Arrieta of the Chicago Cubs went through some rough patches in 2016. A loss of command to batters in the middle of pitching sequences led to a noticeable uptick in walks. This issue compounded itself and lead to a potential shift in confidence that correlated with overcompensation. Let’s dive into the numbers over his career to see if 2016 was a return to prior form, leaving 2014 and 2015 as the best we will ever see of Jake Arrieta.
This is a guest post from friend of the blog Ricky Mears, who writes over at Innings Pitched. Their website will be launching in January 2017. Follow @InningsPitched on Twitter to stay up to date before the launch and sign up for the Newsletter. Tickets to a MLB or MiILB will be given away to a follower once they reach the 200 threshold.
By The Numbers
Jake Arrieta was lauded as having pinpoint control in 2014 and 2015. His 2.08 walks per nine innings placed him as number 24 out of 84 qualifying starting pitchers over the two year stretch. In 2014, Arrieta had 8.2% walk rate against lefties and a 5.4% walk rate against righties. Similarly, in 2015 he had a 6.6% walk rate against lefties versus a 4.6% versus righties.
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