
Are K/9 spikes in April a common thing?
The short answer: No.

The first is overall K/9; second is K/9 by starters; third is K/9 by relievers.
Our color-coordination here: hot orange for the month where the highest K/9 rate occurs; a more sedate orange for instances where the high K/9 rate is shared in multiple months; pale yellow for the month where the second highest K/9 rate occurs.

So draw your own conclusions about where the K/9 rate will go over the course of the 2014 season. What's emerging from the data, for what it's worth, ain't exactly clear.
Are we reverting back to the merely near-record 2013 numbers, or does the pervasiveness of that September pattern mean that the early autumn will set a new record for breezy conditions?
All we know at this point is that the K/9 rate went down in May. (Oh, yeah--and "truth is beauty, and beauty is truth"--but John Keats was born too soon for Tommy John surgery.)