Flexbone (Triple Option)
An option offense where the QB reads unblocked defenders after the snap and decides in real time to hand off (dive), keep, or pitch — mathematically stressing the defense by making unblocked men wrong.
Best fit
Needs a smart, decisive QB who can execute reads and pitches, a tough dive fullback, and disciplined linemen who can cut/combo block. Best for teams that will commit serious practice time to option mesh work — not plug-and-play.
Base formation & personnel
Flexbone: QB under center (or pistol), a fullback directly behind, and two slotbacks split just behind the line each side; two receivers, five linemen. Wishbone: QB with a fullback close behind and two halfbacks behind and outside, forming a 'Y.' Both are three-back, run-first sets.
Core philosophy
- →Triple option: read the dive key (a DT/DE) to give or pull, then the pitch key (next defender out) to keep or pitch.
- →Assignment blocking: block down and leave the read defender(s) unblocked; combo up to linebackers.
- →Inside veer reads the end; midline reads an interior defender — different reads keep defenses guessing.
- →Cut and combo blocking create seams; slotbacks pitch/lead and block the perimeter.
Bread-and-butter plays
The base triple option.
Blocking: Playside line blocks down inside the hole, leaving the DE unblocked as the read; backside cuts off pursuit; slot arcs to the pitch key.
Ball: QB gives to the FB if the DE stays wide; pulls if he crashes; pitches to the trailing slot if the pitch key takes the QB.
Triple/double option reading an interior defender.
Blocking: Down-blocking with the read on a DT.
Ball: QB reads the DT — give to the FB up the middle or pull and keep/pitch.
A give-oriented changeup.
Blocking: A guard traps the read-side interior defender instead of optioning him.
Ball: Fullback straight up the middle behind the trap.
Show one way, run option back the other.
Blocking: Backside pullers/kickers.
Ball: QB options to the counter side — punishes fast flow.
A simple, safe inside run (a called give, no read).
Blocking: Zone-step combo blocks.
Ball: Fullback downhill — complements the option series.
Constraint play off the option fake.
Blocking: Show run then protect; slots/receivers run pitch-and-go, post, or wheel.
Ball: QB throws once the defense crowds the run.
Install progression
Week 1: Alignment, snap, and the FB dive mesh; install Zone Dive (no read) so the mesh is clean before adding reads.
Week 2: Install Inside Veer as a 'double option' (give or keep) — solidify the dive read before the pitch.
Week 3: Add the pitch phase to make it a true triple option; add Midline.
Week 4+: Add Midline Trap, Counter Option, and one veer play-action. This system needs the most install time here.
Full Playbook
28 playsA complete install menu — every play/call grouped by type. Tap any play for a full breakdown: every position's job, how to teach it, and common mistakes to fix.
Quarterback rides the fullback into the B-gap and reads the first man past the tackle to give or keep.
Key: Playside tackle veer-releases inside to the linebacker leaving the dive-key end unblocked for the read.
Full breakdown →Mirror of the inside veer to the left with the quarterback reading the dive key for give or keep.
Key: Playside line veer-blocks inside while the fullback aims for the outside leg of the guard on the dive.
Full breakdown →Quarterback reads the first defensive tackle over the guard and gives to the fullback up the middle or keeps.
Key: Guard releases past the read tackle to the linebacker, leaving the interior lineman unblocked as the give-read.
Full breakdown →Mirror midline read to the left with the fullback attacking the A-gap on the give.
Key: Playside guard skips the read tackle to climb to the linebacker as the quarterback rides and reads.
Full breakdown →Quarterback rides the fullback on the midline while the backside guard traps the read tackle.
Key: Backside guard pulls to trap the first tackle over the center, hardening the give read for the fullback.
Full breakdown →Full-speed rocket motion wingback takes a long toss and sprints to the perimeter.
Key: Playside linemen reach-block to the outside as the tackle and wing pin the edge for the rocket runner.
Full breakdown →Mirror rocket toss to the left with the motion wing catching on the run to the edge.
Key: Playside linemen reach and the slot arc-blocks the alley defender to spring the toss.
Full breakdown →Jet-motion slot takes a quick toss and attacks the edge faster than a standard sweep.
Key: Playside blockers reach and arc to wall the perimeter as the jet man turns the corner.
Full breakdown →Quarterback reads the dive key for give, then attacks the pitch key to keep or pitch to the trailing slot.
Key: Line veer-blocks inside as the playside slot arc-releases to the alley and the backside slot pitches deep.
Full breakdown →Mirror full triple option left with dive, keep, and pitch phases off the two reads.
Key: Playside tackle veers inside to the linebacker while the pitch slot runs the pitch relationship deep.
Full breakdown →Backfield shows one way then the quarterback runs option back against the grain to the other edge.
Key: Backside guard and tackle pull to lead the counter option as the quarterback reads the contain defender.
Full breakdown →Quarterback runs the option with the playside slot loading down on the pitch-key defender.
Key: Slot blocks the force defender (load) so the quarterback attacks downhill and pitches off the next man.
Full breakdown →Mirror load option left with the slot kicking the force man to give the quarterback a clean edge.
Key: Playside slot loads the pitch key while linemen veer inside, isolating the quarterback on the alley defender.
Full breakdown →Quarterback attacks the pitch key immediately with no dive phase and options to the slot.
Key: Playside line reaches to the edge while the quarterback pitches off the first unblocked perimeter defender.
Full breakdown →Mirror speed option left with a quick pitch read on the edge defender.
Key: Line reach-blocks playside as the quarterback attacks the alley and pitches off the force man.
Full breakdown →Quarterback reads the end man on the line and gives the fullback wider off-tackle or keeps.
Key: Playside tackle base-blocks and the fullback aims outside the tackle as the quarterback reads the edge.
Full breakdown →Quarterback rides a belly fake to the fullback then options the edge to keep or pitch.
Key: Playside blockers down-block and arc while the quarterback reads the contain man off the belly ride.
Full breakdown →Quarterback hands to the fullback on a quick interior trap up the middle.
Key: Backside guard pulls to trap the first defender past the center as the center blocks back.
Full breakdown →Fullback follows a tight interior wedge straight ahead for short-yardage and goal line.
Key: Center and guards block shoulder-to-shoulder forming a moving wedge to drive the front back.
Full breakdown →Quarterback fakes the dive and follows a lead blocker straight up the middle.
Key: Backside guard pulls to lead through the A-gap for the quarterback off the fullback fake.
Full breakdown →Slot or fullback runs counter off-tackle behind a pulling guard and tackle from the backside.
Key: Backside guard kicks out the edge while the backside tackle wraps up through the hole for the runner.
Full breakdown →Fullback takes a straight handoff on an interior zone-blocked dive for tough yards.
Key: Interior line zone-steps playside and combos up to the linebackers for the downhill dive.
Full breakdown →Quick bubble to the slot on the perimeter as the outside receivers block the edge.
Key: Outside receivers stalk-block the corner and force defender while the slot catches the bubble in space.
Full breakdown →Quarterback shows drop then throws a tunnel screen to a slot stepping inside behind releasing linemen.
Key: Playside linemen release outside to form the tunnel wall as the slot catches behind the line.
Full breakdown →Quarterback fakes the triple option then throws deep to a slot or split end off the run action.
Key: Playside slot arc-releases as if to block then slips vertical while the backside end runs a post.
Full breakdown →Fullback midline fake holds the linebackers while the quarterback throws the seam off play-action.
Key: Interior sells the give as the slot and end run vertical seams behind the crashing linebackers.
Full breakdown →Rocket toss action pulls the perimeter defenders up as the quarterback pulls up to throw over the top.
Key: Toss flow sucks the secondary while the backside receiver runs a deep post behind the biting corner.
Full breakdown →More offense systems
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