Diamond and One

Instructions

1. 1Assign your best on-ball defender to the opponent's primary scorer and deny them the ball everywhere on the floor
2. 2Set the other four in a 1-2-1 diamond behind the chaser: one at the top, two across the middle, one protecting the rim
3. 3The top defender goes after the ball on the first pass, closing out to pressure the new ball handler
4. 4The two middle defenders slide to cover the second-pass options rather than reacting to where the ball already is
5. 5The back defender guards the rim and cleans up on the weak side
6. 6Repeat the rotation on every pass - the top chases the ball, the middle two anticipate where it goes next
7. 7Call out every screen the chaser has to fight through so the diamond can help without switching

Pro Tips

• The chaser never helps off their assignment - that discipline is the whole point of the defense
• The middle two guard passes, not the ball; both drifting toward the ball is the breakdown that leaves the next pass wide open
• Anticipation is what makes the diamond work - the defender should already be there when the second pass arrives, not closing out after it
• Save it for a team with one dominant scorer and limited shooting around them
• The soft spots are the corners and the short corner, so the middle two have to close out and recover
• Rebounding is the trade-off: assign the back defender and both middle defenders to block out on every shot
• Change into it after a made basket or a timeout - the surprise is worth as much as the alignment