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Football Library · Plays

I Back QB Throwback· 5v5 Flag

intermediateaka I Formation QB Throwbackaka I Back Right QB Throwback

5v5 Flagonly

I-back play action that boots the quarterback right before throwing back across the field.

Make this play yours

Add the diagram and assignments to your playbook, then tailor the details to your team.

Try another concept

Matched to this play and your game type.

01Split Back Boot Left LadderShares the Quick Out + Curl readPlay-action boot left with a layered left-side ladder and a deep throwback route from the receiver side.
02Strong QB ChoiceShares the Post + Quick Out readStrong-set play-action choice that moves the quarterback and gives him layered pass-or-run answers.
03I Back All OutShares the Post + Quick Out readFour-eligible I-back play-action pass that sends both wide receivers deep and distributes the inside routes underneath.
04I Back CrossShares the Post + Quick Out readI-back crossing pass with two deep routes exchanging sides over paired underneath outlets.

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The design

How I Back QB Throwback works

I-back play action that boots the quarterback right before throwing back across the field.
QB flashes the handoff to the deep back and rolls right.
X climbs into the throwback window, C breaks right underneath, Z runs the outside return route, and Y carries the fake through the middle to hold pursuit.

Coach the details

Every player's job

: carry out the drawn backfield action, keep your eyes downfield, and run only after the progression closes.
: 10-yard post inside — plant hard at the break, separate from the safety.
: 5-yard quick out to the sideline — speed out — no break-down, snap to the sideline.
: sell the run fake full speed on the drawn track; finish every rep as if you have the ball.
: 9-yard curl inside — settle in the soft spot, face the QB.

Call sheet

When and where to run it

Game planUse I Back QB Throwback after the defense has begun reacting to the companion calls from the same formation.
Game planIts value comes from making the opening picture and backfield tempo look identical before the assignments separate.
Game planMirror the complete play for a left call rather than moving only one runner.
Game planFor younger players, shorten route depth and backfield travel proportionally while keeping the exchange order, fake responsibility, and high-low spacing intact.

Pre-snap to post-snap

Read the defense

Keys to watch

Use I Back QB Throwback after the defense has begun reacting to the companion calls from the same formation.

Be ready to change the answer

Cover 0: Anything that develops slowly — pressure gets home first Better answers: Four Verticals, Mesh, Slant-Flat, Smash
Cover 1: Outside vertical shots — the free safety caps them over the top Better answers: Mesh, Drive, Smash, Y-Cross, Four Verticals, Levels
Cover 2: The flats — the corner squats and jumps anything quick outside Better answers: Smash, Four Verticals, Flood
Tampa 2: The deep middle — the Mike runs it, so a straight seam is contested (unlike base Cover 2) Better answers: Smash, Flood
Cover 3: Deep outside — the three-deep shell caps outside verticals Better answers: Curl-Flat, Slant-Flat, Smash, Flood, Four Verticals, Snag, Dagger, Stick
Cover 4: Deep shots — four deep defenders make it very hard to win over the top Better answers: Stick, Snag, Slant-Flat, Curl-Flat, Mesh

Troubleshooting

What can break the play

Avoid I Back QB Throwback when the exchange or play-action timing is not yet dependable, when the league rules prohibit its ball handling, or when the field is too compressed for its routes to separate safely.
Changing the formation or backfield alignment before the snap, which removes the disguise that makes I Back QB Throwback pair with its companion calls.
Rushing the mesh, fake, or boot footwork. Every player must hit a fixed landmark at full speed and keep all exchange action behind the line.
Letting the route distribution drift into generic spread spacing. Keep the formation's launch points, route depths, and crossing order intact when making team-specific adjustments.