Reading the defense means identifying the coverage and pressure before and after the snap so you can choose the right play or throw. Start with the safeties, count the defenders in the box, and look for blitz clues.
Pre-snap checklist
- Safeties: one deep safety usually means Cover 1 or Cover 3; two deep often means Cover 2, Cover 4 or two-man.
- Box count: more defenders near the line than blockers favors passing.
- Cornerback leverage: tight press suggests man coverage; deep cushion suggests zone.
- Blitz clues: linebackers creeping up, safeties rotating late.
Common coverages
| Coverage | Deep defenders | Weak spot |
|---|---|---|
| Cover 0 | None (all-out man plus blitz) | Quick throws, beat one-on-one |
| Cover 1 | One deep, man underneath | Crossing routes, favorable matchups |
| Cover 2 | Two deep halves | Middle of the field, sideline between corner and safety |
| Cover 3 | Three deep thirds | Flats and seams |
| Cover 4 | Four deep quarters | Underneath routes |
Post-snap
Defenses disguise looks, so confirm after the snap by watching how the safeties rotate and where underneath defenders drop.
Frequently asked questions
What should a QB look at first?
The safeties.
How do you spot a blitz?
Watch for defenders creeping toward the line and safeties rotating late.
What is Cover 2?
A zone with two safeties each covering half of the deep field.
