Teachable Tripp - Moving to a Tricky Double Whacker

Tmac's Teachable Moment this Thursday features 1B Umpire Tripp Gibson moving to adjust his position as Phillies first baseman Rhys Hoskins stretches to catch a throw wide of first base as Nationals batter-runner Joey Meneses arrives at the bag.

The key to officiating this play is to read the fielder, in this case Hoskins. As the play develops, Hoskins appears poised to lunge into foul territory to try and field the throw, which tells U1 Gibson to similarly move toward foul territory in order to officiate the pulled foot vs tagged base aspect of the play.

By virtue of attaining a keyhole angle to see the foot and base interaction, Gibson is able to rule the runner safe by virtue of a pulled foot.

Video as follows:

Alternate Link: Trip's movement at first base in response to a reaching first baseman (CCS)