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Not in any team playbook.
RPO Peek Slant is a run pass option out of Shotgun Wing Slot Wk with 12 personnel that keys the QB read on an inside zone handoff. The diagram shows the slot receiver running a quick slant across the middle while the outside receiver runs a go route to hold the corner deep, with the running back releasing on a short flat route underneath. The QB peeks the slant defender at the mesh point and either hands off the inside zone run or pulls it to fire the slant into the vacated window, making this a true zone beater built to punish linebackers who bite on the run fake.
Watch the play side linebacker at the snap: if he crashes hard toward the run fake, that confirms the slant window is open and the QB should pull it immediately. Check corner alignment on the outside go route pre-snap, since a corner playing off man or deep zone signals the slant lane underneath will be uncontested. Beware of a user-controlled linebacker sitting in the passing lane or spying the slant, since this is the primary defender that shuts this play down if he stays home instead of biting run. Man coverage on the slot receiver with inside leverage can jump the slant route, so look for the QB to check to the flat route or trust the run instead. Zone blitzes that send extra rushers while dropping a linebacker into the peek slant window are the toughest defensive answer, so recognize five-plus rushers pre-snap and be ready to hand the ball off rather than force the throw.
Pre-snap, count the box defenders and check if the defense is playing a light front, since that tells you to trust the run half of the RPO immediately.
Identify the coverage shell before the snap: if you see two deep safeties in a soft shell, the slant window opens up faster because underneath defenders have more run responsibility.
Use the peek slant as your first read but keep an eye on the flat route from the running back as a checkdown if the linebacker sits on the slant.
Pair this play with RPO Peek Post or RPO Peek Buck Slant in your play-calling sequence so the defense cannot key on the slant alone and has to respect vertical shots off the same look.
This play works best on early downs (1st and 10, 2nd and short) when defenses are more likely to load the box for run support, giving you the pull-and-throw window against a linebacker crashing downhill.