Excluding rundowns, when a runner is attempting to advance from one base to another, he has no restricted baseline until a tag attempt is made. If a runner anticipates an imminent tag attempt, he can legally divert his basepath. He does not need to stay in a direct line to the base. Once the tag attempt is made, the runner has a direct line to the base he is going to and has three feet in either direction of that line. With that in mind, let’s look at the following play that occurred in the May 15, 2016 game between the Mets and Rockies in Colorado.