Playbooks
Quick Reference
Breakdown
Cover 3 Hard Flat is a zone coverage play out of the 4-3 Over Solid set that drops three deep defenders (the two outside corners and the deep safety) into thirds of the field while pushing the flat defenders hard to the boundary to squeeze underneath throws. The two inside linebackers and the strong side flat defender sink into intermediate zones, with the flat corners driving flat and downhill on any quick out or flare route rather than sitting soft. This is a zone beater killer against quick game and flat concepts, forcing the quarterback to hold the ball and throw over the top into the deep thirds, where the primary read progression starts with the deep middle third safety before working to the sideline corners.
Defensive Reads
Read the flat defenders first, if they are crashing hard downhill you are in Cover 3 Hard Flat and should sit on any speed out, quick flat or bubble screen route Check the deep safety alignment pre snap, a single high safety in the middle of the field confirms the three deep shell before the snap Watch the corners at the snap, they should be sinking to deep thirds rather than pressing, if they bail immediately it confirms zone rather than man This coverage is vulnerable to deep out routes and corner routes thrown outside the hard flat defender's landmark since he is focused on shallow throws Attack the seams between the deep thirds and the underneath zones with deep crossing routes or dig routes, since the hard flat rotation can open a soft spot in the intermediate middle of the field
Usage Tips
Call this on early downs or second and long when you expect quick game or flat route concepts designed to beat standard Cover 3 flat defenders
Key the running back and tight end pre snap, if they are aligned to release quickly into the flat this play is built to jump those throws
Use this as a changeup after showing Cover 3 Match or Cover 3 Sky WK so the quarterback cannot distinguish the hard flat drop from your matchup zone looks
Hot route the strong side flat defender wider if you face a lot of bunch or stack formations that try to rub off the flat defender's leverage
Pair this with Cover 1 Sting in your play calling sequence, both disguise well pre snap out of similar personnel and give you a man and zone changeup against motion
