Offence (cream circles)
- QB quarterback
- RB running back
- WR wide receiver
- TE tight end
- LT LG C RG RT the offensive line (left tackle to right tackle, centre in the middle)
Defence (gold letters)
- DE defensive end
- DT defensive tackle
- LB linebacker
- CB cornerback
- S safety
Special teams (when they appear)
- K kicker
- ST coverage / special teams
- RET returner
This is the idea that unlocks everything else. The offence does not get unlimited time with the ball. They get four attempts (called downs) to gain 10 yards. Manage that, and they get a fresh set of four. Fail, and the other lot usually get the ball.
How a set of downs works
- 1st & 10 means first down, 10 yards still needed. Almost every drive starts here.
- If they gain 4 yards, it becomes 2nd & 6: second attempt, 6 yards to go.
- Gain those 6 (or more) and the referee signals a first down. The count resets to 1st & 10.
- If they reach fourth down still short, they have a decision to make.
On television you will hear this constantly: “second and seven”, “third and inches”. The first number is which attempt they are on. The second is how far they still need. Once you can read that, you can read the game.
What happens on fourth down
Fourth down is the fork in the road. Teams usually pick one of three options:
- Punt: kick the ball away so the other team starts further back. The safe, common choice.
- Field goal: if they are close enough, try to kick it through the posts for 3 points.
- Go for it: run or pass and try to get the remaining yards. Fail, and the defence takes over on the spot.
The line of scrimmage
Each play starts with the ball on a line. That is the line of scrimmage. Nobody on the offence (except the person who will snap the ball) can cross it until the ball is snapped. Think of it as the scrum put-in: a restart line, not a moving ruck.
- Snap
- The moment the ball is passed back from the ground to start a play: usually to the quarterback.
- Line of scrimmage
- The imaginary line through the ball at the start of a play. Both teams line up either side of it.
- First down
- A fresh set of four attempts, earned by gaining the required yards, or given after a penalty or kick-off.