Flat

The Flat tag marks every play that sends a receiver, back, or tight end into the flat zone outside the numbers, covering 258 plays across 14 formations and 170 sets from Curl Flat concepts to RPO Alert Flat and PA Sprint HB Flat rollouts. Flat routes are the foundation of horizontal stretch offense: they hold the corner or outside linebacker, punish Cover 3 cloud and Cover 4 drops, and give you a quick checkdown when a nano blitz gets home. Filter by this tag to build a play-calling menu around high-percentage throws, flood the sideline with route combos that beat both man and zone, or find flat releases that pair with your existing curl, drive, and RPO reads.