What is the Sweep concept in NFL Flag?
In NFL Flag a sweep is won entirely before the ball crosses the line, because the rulebook stops your other players helping after it does. Any offensive player near the carrier must halt once he crosses, so the three men not carrying it have one job: run their defenders away from the corner early. The centre is one of those three, which is a man plain 5v5 does not have.
Why Sweep works in NFL Flag
Your teammates must stop once he crosses the line
Section X rule 9 says offensive players in close proximity to the ball carrier have to stop their motion once the ball has crossed the line of scrimmage, and spells out that there is no running with the ball carrier. Everywhere else a sweep is helped by bodies arriving with the back. Here that help is a penalty, so every yard your receivers are worth has to be earned in the first two seconds.
You have a fourth man to send away, and he snaps the ball
The fifth player in NFL Flag is a centre who is an eligible receiver on every down, where plain 5v5 uses a running back and has no centre at all. On a sweep that is one more defender you can drag to the wrong side of the field. Send him against the run, not with it, and the edge you are attacking has one fewer body in it.
Screening is banned by name, not just blocking
Rule 8 reads no blocking or screening is allowed at any time, and naming the screen matters because standing in a defender's path is the workaround coaches reach for when they are told they cannot block. In this format it is the same foul. A receiver who drifts back toward the ball to get in somebody's way has cost you five yards rather than bought you two.
It attacks the one defender who cannot be replaced
Every defense has somebody responsible for the edge. Inside runs meet a front that can shuffle and fill for each other, but the man setting the perimeter has nobody behind him to cover a mistake. A sweep asks that single defender to be right immediately, and if he takes one step inside the runner is already past the only player who could have stopped him.
Speed is the only thing it needs to work
There is no timing, no read that has to be correct and no route that has to be run at a depth. A sweep fails when the back is slow to the corner and works when he is not, which makes it the most reliable call a team has before it is good at anything else. It is also why it survives every level of football rather than being coached out.
It makes everything that looks like it more dangerous
A defense that has been beaten around the edge starts flowing at the first sign of sideways movement, and flow is what counter, reverse and end around are built to punish. The sweep is the setup call for half the run game, so its value is not only the yards it gains but the yards the next three calls gain because of it.
How to read it
- 1
Take the ball moving, not standing
The back should already be going sideways when the exchange happens. A back who catches the ball flat-footed and then turns has given the edge defender the half second he needs, and no amount of speed afterwards buys it back.
- 2
Read the edge defender, not the sideline
The decision is about one man. If he widens with the runner, the ball cuts up inside him. If he sits or crashes inside, the runner keeps stretching and beats him to the corner. Running at the sideline regardless of what he does is the most common way a sweep loses yards.
- 3
Get to the line of scrimmage, then turn
Yards come from getting square. A back who runs parallel to the line looking for more room is running away from the first down and into pursuit that has had time to arrive.
- 4
Take what is there rather than the whole corner
A sweep that gains four is a good sweep. Bouncing a run that has already been walled off, in search of the edge that is no longer available, is how a four yard gain becomes a loss of six.
What changes in NFL Flag
Your teammates must stop once he crosses the line
Section X rule 9 says offensive players in close proximity to the ball carrier have to stop their motion once the ball has crossed the line of scrimmage, and spells out that there is no running with the ball carrier. Everywhere else a sweep is helped by bodies arriving with the back. Here that help is a penalty, so every yard your receivers are worth has to be earned in the first two seconds.
You have a fourth man to send away, and he snaps the ball
The fifth player in NFL Flag is a centre who is an eligible receiver on every down, where plain 5v5 uses a running back and has no centre at all. On a sweep that is one more defender you can drag to the wrong side of the field. Send him against the run, not with it, and the edge you are attacking has one fewer body in it.
Screening is banned by name, not just blocking
Rule 8 reads no blocking or screening is allowed at any time, and naming the screen matters because standing in a defender's path is the workaround coaches reach for when they are told they cannot block. In this format it is the same foul. A receiver who drifts back toward the ball to get in somebody's way has cost you five yards rather than bought you two.
When not to call Sweep
It does not answer a fast defense that has seen it
The counter to a sweep is speed and discipline on the edge, and any defense gets both eventually. Once the perimeter player stops guessing, the sweep stops producing, and the answer is the misdirection it set up rather than running it harder.
It is a bad call when you need a yard
Every step sideways is a step not forward, and the play is not over until the runner turns upfield. On third and one that is a long time to hold the ball behind the line of scrimmage with nobody blocked, which is why short yardage belongs to something downhill.
Take it to your team
Draw your plays in the free flag football play designer, collect them in the flag football playbook builder, and print football play cards so every player knows them come Saturday.
Open Sweep in the designer
Opens this exact NFL Flag diagram. Move anybody, change the depths, then save it to your playbook.
Open this play in the designerRelated questions
Can my receivers run with the ball carrier on a sweep in NFL Flag?
Can the centre carry the ball on a sweep?
Is a sweep legal near the goal line in NFL Flag?
What do I call when the sweep stops getting outside?
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Coach Ray Carroll
Coaches 5v5 flag football from kindergarten through 7th grade in San Mateo and San Carlos, California, and built RC Football to design, teach and print the plays his own teams run.