A quarterback throws for 280 yards, a running back gains 95, and the defense records three sacks—but what exactly goes into those numbers? Football statistics are built from the details of each play: where the ball starts, what happens, and where the play ends. Knowing the basic rules behind the totals makes box scores easier to read and helps explain why two similar-looking plays can produce different stats.
Who records the statistics?
During a game, an official statistics crew records each play and assigns its results to players and teams. The crew tracks events such as passes, runs, tackles, sacks, penalties, and turnovers. The league’s scoring rules guide those decisions, and video review or postgame checks can lead to corrections.
Some stats are straightforward, like whether a field goal was made. Others involve judgment. On a tackle, for example, statisticians must decide which defender stopped the runner and whether the play qualifies as a sack. That is why certain defensive totals can vary between leagues or statistical providers, even when the game film is the same.
How offensive statistics are calculated
Passing
A completed pass adds a completion and the yards gained from the line of scrimmage to the point where the play ends. An incomplete pass counts as an attempt but adds no passing yards. A touchdown pass is credited to the quarterback and the receiver; an interception is charged to the passer and credited to the defender who catches it.
For example, if a quarterback throws a short pass and the receiver catches it 6 yards beyond the line of scrimmage, then runs for another 14 yards, the play adds 20 passing yards. The passer is credited with the full gain, as is the receiver.
Sacks work differently. The quarterback is charged with a sack, and the lost yards count against the team’s net passing yards. They are not subtracted from that quarterback’s individual passing-yard total. A quarterback who escapes a sack and runs with the ball is generally credited with a rushing attempt and rushing yards instead.
Rushing
A rushing attempt is a designed run or a play in which a player advances the ball as a runner. Rushing yards are measured from the line of scrimmage to the spot where the runner is down, goes out of bounds, or scores. A quarterback scramble counts as a rush, while a kneel-down is also usually recorded as a rushing attempt, often for negative yards.
Yards per carry is calculated by dividing rushing yards by rushing attempts. If a back gains 84 yards on 14 carries, the average is 6.0 yards per carry. The average can be useful, but it doesn’t show whether most of those yards came on steady gains or one long run.
Receiving
Receiving statistics include catches, receiving yards, and receiving touchdowns. A receiver earns a catch when they complete a reception under the rules and maintain possession through the catch. Receiving yards are measured from the line of scrimmage to the end of the play—not just from the spot where the ball was caught.
That distinction matters on a screen pass. A receiver might catch the ball behind the line, then run well downfield. The total gain is credited as receiving yards, even though part of the play happened after the catch. A drop is not a reception, though the pass still counts as a quarterback attempt.
Common football stats at a glance
| Statistic | How it is calculated | What it tells you |
|---|---|---|
| Completion percentage | Completions ÷ pass attempts × 100 | How often a passer completes an attempted pass |
| Yards per attempt | Passing yards ÷ pass attempts | Average passing production per attempt |
| Yards per carry | Rushing yards ÷ rushing attempts | Average gain on a rushing attempt |
| Yards per reception | Receiving yards ÷ receptions | Average gain per catch |
| Field-goal percentage | Field goals made ÷ field-goal attempts × 100 | How often a kicker converts field-goal tries |
| Team net passing yards | Team passing yards minus sack yards lost | Net passing production after sacks |
How passer rating works
In the NFL, passer rating combines completion percentage, yards per attempt, touchdown percentage, and interception percentage into one number. Each part is converted into a component with a ceiling and floor, then the components are combined. The resulting rating runs from 0 to 158.3.
It is a formula, not a direct measure of every aspect of quarterback play. It does not account for factors such as pressure, dropped passes, rushing value, or the difficulty of a throw. College football uses a different passing-efficiency formula, so ratings from the NFL and college game should not be compared as if they were calculated the same way. ESPN’s Total QBR is also a separate, proprietary measure—not the same statistic as NFL passer rating.
Defensive and special-teams statistics
Defensive box scores commonly list tackles, sacks, interceptions, forced fumbles, and fumble recoveries. A sack is credited when a defender brings down the passer behind the line of scrimmage on a passing play. If multiple defenders share the sack, it may be split. A quarterback who is tackled while running generally does not give the defense a sack.
Tackles can be recorded as solo or assisted. A solo tackle means one defender is credited; an assisted tackle means more than one defender is credited. The precise judgment can depend on the league’s statistical rules, so tackle totals are less consistent across sources than, for instance, interceptions.
For kickers, field-goal percentage is made kicks divided by attempts. Extra points are tracked separately. A punt’s gross distance measures the kick from the line of scrimmage to where it ends, while net punting accounts for returns and certain outcomes such as touchbacks. Those measures describe different things: a long punt is not necessarily a good one if the return team gains substantial yardage.
Team totals and the box score
Team statistics summarize what happened across all players. Total offensive yards generally combine rushing yards with net passing yards, so sack losses affect the team figure even though they do not reduce the quarterback’s individual passing yards. Turnover margin is turnovers gained minus turnovers lost. A team that intercepts two passes and loses one fumble has a plus-one turnover margin.
First downs are awarded when a team reaches the line to gain through a run, completion, or penalty that grants one. They are not simply a count of plays that gain 10 yards: the distance needed depends on the down and the line to gain. That context is one reason a box score is more useful when read alongside the game situation.
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Frequently Asked Questions
Do sack yards count against a quarterback’s passing yards?
No. Sack yards reduce the team’s net passing yards, but the quarterback’s individual passing-yard total is not reduced. The sack is recorded separately.
Does a quarterback scramble count as a pass or a rush?
Once the quarterback runs with the ball rather than throwing it, the play is generally recorded as a rushing attempt. A sack, by contrast, is recorded when the passer is brought down behind the line on a passing play.
Why might two websites show different tackle totals?
Tackles can involve judgment, especially when several defenders make contact. Statistical crews or providers may apply the rules differently, and corrections can also update a total after the game.
Is a higher passer rating always better?
A higher NFL passer rating generally reflects stronger results in the formula’s four categories. But it leaves out important context, including pressure, rushing contributions, and how difficult the throws were.
Final Thoughts
Most football stats come down to consistent play-by-play rules: identify who had the ball, mark where the play began and ended, then credit the players involved. Once you understand the difference between individual and team totals—and know what a formula includes—you can read a box score with more confidence. Just remember that numbers describe parts of a game; they rarely tell the whole story on their own.
Aiden Cross is a sports writer and editor at BeliveSports, covering a broad range of sports with a focus on clear, accurate, and practical information. His work covers rules, techniques, player roles, competitions, equipment, statistics, and the details that help readers better understand how different sports are played. Aiden takes a research-driven approach to sports writing, using reliable sources and established sporting information to provide context rather than simply repeating surface-level facts. His goal is to make complex topics accessible while maintaining the accuracy and depth expected by knowledgeable sports fans. At BeliveSports, Aiden contributes to the site’s editorial standards by focusing on accuracy, clarity, useful context, and reader-first explanations.