This article is part of our Collette Calls series.
Most of the United States is under a heatwave, at least in the western part of the country. I was podcasting with BaseballHQ's Ryan Bloomfield today who said the projected high in Oregon was 115, which is mind blowing considering it has been higher than 90 degrees maybe five days here in Charlotte this year. We typically see an annual spike in the offense as temperatures warm, but 2021 also offers us the additional wrinkle of the random enforcement of substances of the baseball after the league looked the other way for entirely too long. It is too early in the new world order to make any definitive statements on the impact of the sudden and harsh changes, but this graph from Rob Arthur at BP shows just how dramatic spin rates have been impacted:
We are likely going to see a spike in offense in the coming weeks as the high spin stuff disappears and the thermostats continue to rise. As play begins June 27, we are indeed seeing a spike in offense when looking at the pitching numbers. The league-wide ERA in March/April was 3.99, and that jumped to 4.08 in May, and