--- slug: backside title: Backside depth_tier: entry side: OFFENSE category: Run Game source_id: "OFF-0111" created: 2026-05-17 updated: 2026-05-17 canonical: https://learningfootball.xyz/terms/backside aliases: - backside cut - cutback lane - backside pursuit - away from the play --- # Backside ## Short Definition The side of the formation away from the play—where cutback lanes exist in zone runs and where backside defenders must be accounted for to prevent pursuit. ## Definition Backside is the side of the formation away from where a play is designed to attack—the opposite of play-side. In run game design, the backside is where cutback lanes develop, where pursuit defenders must be blocked to prevent them from chasing the ball, and where a disciplined running back looks when the play-side lane is closed. In pass game design, the backside is where secondary receivers are typically aligned, providing the quarterback an alternative if the primary play-side concept is covered. Backside blocking assignments are categorized as cut-off blocks—blocks designed to seal defenders from pursuing the play rather than to generate forward movement. A backside tackle who successfully cuts off a backside defensive end has not created yardage himself, but he has eliminated the defender who would have made the tackle on a cutback. Backside blocking is fundamentally about subtraction: remove the pursuit threat so the running back's cut back has open space to run through. The cutback is the backside run concept that most directly illustrates why the backside matters. In inside zone, the running back is coached to read the front-side flow and cut away from it if the play-side lane closes. When the running back cuts back, he is running directly into the space that backside blocks have created—he is running toward a lane that didn't exist until the backside linemen sealed their defenders. A cutback for fifteen yards is the result of both a play-side read and backside execution working together. In the passing game, backside receivers typically run complementary routes that convert the play into a full-field concept. A play-side trips concept might have a single backside receiver running a go route or a post—not the primary read, but a route that prevents the defense from overloading to the play-side trips by threatening the backside deep. The backside receiver's route keeps a safety or cornerback accountable, freeing the play-side concept to work with less coverage pressure. ## Example "Play goes right, running back cuts left—that's a cutback into the backside. The backside guard sealed the defensive tackle from pursuing. Without that block the cutback gets nothing. The play went away from the design and gained twelve yards because the backside held." ## Common Confusion Backside does not mean unimportant. Backside blocking assignments—cut-off blocks that prevent pursuit defenders from chasing the play from behind—are as critical to a successful run as the play-side blocks that create the initial lane. A perfectly executed play-side double-team means nothing if a backside linebacker runs uncontested to the ball because the backside lineman failed to cut him off. Backside discipline is what turns a four-yard gain into an eight-yard gain when the running back cuts back. ## Related - play-side - inside-zone - outside-zone - cutback - gap-vs-zone-scheme - counter - strength --- Source: https://learningfootball.xyz/terms/backside