Been watching bits and pieces, just checking in now. Great heads up play by the runner to take advantage of the ill-prepared infield defense. The closest fielder to third base was the pitcher, and he has to know it's his base when the infield is shifted. It's not something a pitcher would have needed to do often in the past, but in the modern era of shifts every player needs to know every possible play in every situation. That run was on Gibson and probably the coaching staff.