Softball: Blood, sweat, and tears, and you still want more
The purpose of this drill is to improve reaction time and thinking at the plate. Paint several softballs with different bright colors, and place them in a bucket behind the mound. Have someone place one of the balls in the pitcher's glove without letting the batter see the color. The pitcher then calls out a color before pitching the ball. The batter can only swing if the ball matches the color the pitcher called out (and if the pitch is in the strike zone).
Colored Softballs Impoving Batting Average
If the enemy is in range, so are you