Inside zone

Inside zone is the most common run scheme in football. Every offensive lineman takes a playside step and the line works in tandem — covered linemen and uncovered linemen pair up on combo blocks, driving the down defenders before one climbs to a linebacker. The running back reads the blocks and cuts off the first daylight. It rewards linemen who can move in unison, stay square, and time their climbs — five guys thinking as one. The cousin scheme is outside zone, which stretches the same idea laterally to the edge.

Defined by Coach Jay Freeman — 32 years coaching the offensive and defensive line.

Related trench terms

Outside zoneO-Line

A run scheme where all blockers step laterally to playside, stretching the defense to the edge.

Combo blockO-Line

Two linemen briefly working together on a single defender before one releases to the next level.

ClimbO-Line

When one lineman in a combo releases up to the second level to block a linebacker.

Reach blockO-Line

A block where the lineman gets his head past the defender's playside shoulder to seal him.

45° setO-Line

Coach Jay's default pass set — kick on a 45° angle to close the rusher's path and meet him square at your spot, instead of dropping straight back (the vertical set).

Go deeper

• Coach Jay’s lineman training library — the technique behind the term →
• Back to the full Trench Dictionary →
• Get the free 6-week trench training program →