Set up two teams, one in the field throwing the ball, and the other who will be running through the field to try to score a run. The running team forms two lines behind an endline and the first player in line must run across the field and back without getting hit by the ball to score a run. They will then tag the next runner who will attempt the same thing. The fielding team has a soft Nerf-type ball in which they are trying to throw it at and hit the runner before they score. Hit three runners below the shoulders to get three outs. There's a bit of strategy involved in this activity - both to try to score, and to try to get the runners out.