Foul balls are typically a successful result for a pitcher. In a no-strike or one-strike count, they are as good as a whiff or a called strike. In a two-strike situation, of course, they are generally useless, but they do little harm, keeping the count the same. Yet foul balls are difficult to credit: does a pitcher deserve lauding for earning a bit of poor contact, or skepticism for failing to miss the bat entirely? For Logan Gilbert, and Logan Gilbert’s four-seam fastball in particular, the answer to that question may be an important one, or it could be something he could improve enough to avoid altogether.