Before the mailbag, a brief plug: If you haven’t watched Danny Duffy on Thursday’s episode of True Blue Live, you can do so here. Danny and I covered a number of topics, including Kansas City, his hometown of Lompoc, a fan who sent him a strange potato, and his season thus far.
We also talked about the increased usage of his change-up and his velocity, which is down a tick this season. In 2016, Duffy’s four-seam fastball averaged 94.9 mph, while his two-seamer averaged 94.4, according to Pitch f/x data. This year, Duffy’s four-seam fastball is down to 92.