No rundown should ever fail to get an out. That they do is usually the result of one of three preventable errors. Your whole team doesn't get involved. You execute too many throws. You leave yourself open to errors - through poor positioning and poor ball handling.
Black lines are direction of player movement.
To return to home page, click on open grass. Hold your arm steady - hand up by your head, lots of white showing, no fakes. Make a short-arm, snap throw. Throw beside, not across - catch all relays on the tosser's throwing arm side, never throw across the runner's path. Don't block the basepath unless you have the ball - as soon as you've made a relay, rotate back and let the next fielder get a good view.