You only need 2 people for backyard whiffle ball. I played 1 v 1 a lot because even if you joined several baseball teams, that could only get you 2-3 hours of baseball a day anytime except Saturday. 1v1 baseball generally required more work since a well hit baseball covers more ground.<p>We also played &quot;pepper&quot; which was a bunting game with at least two kids. &quot;Hotbox&quot; and &quot;burnout&quot;, a base running drill&#x2F;game and a slightly sadistic game of catch, were two more we could play with 2+. I also practiced pitching solo via a brick wall.