Here Are the Biggest Fastball Gains and Losses
It’s still too early to know much of anything. That’s going to stay true for a while. So we’re still going to look for indicators that ought to stabilize quickly, which means fastball velocities remain of interest. Have you grown tired of reading articles about changes in fastball velocity? I have, too! But here is another one of them, just to bring 30 names to your attention. The subject might be tiresome, but the data’s still relevant.
You’ll find two tables. One shows the 15 pitchers with the biggest gains in average fastball velocity since 2016. The other shows the 15 pitchers with the biggest losses in average fastball velocity. I could’ve cut off at 10, instead of 15, since that’s more conventional, but I think stretching to 15 brings more pitchers of interest into the fold. To gather this information, I ignored the FanGraphs leaderboards and went for the PITCHf/x leaderboards at Baseball Prospectus, powered by Brooks Baseball. That’s because the Brooks Baseball numbers have been calculated in the same way year over year, while the numbers on the FanGraphs pages have had a change in source, from PITCHf/x to Trackman. According to Brooks, the average fastball right now is down about half a tick, which is what we’d expect in early April. OK. Onward!