Fourth-Down Decision Making: When to Go for It
Punt, kick or go for it? See how coaches weigh distance, field position, score and time, how the break-even math works, and why the answer differs from one situation to the next.
Every football fan has shouted at a television about a fourth-down decision. Your team has the ball near midfield, needs two yards, and the coach sends out the punting unit. Or your team goes for it deep in its own territory, fails, and the other side scores. Either way, someone in the stands is sure the coach got it wrong.
Fourth down is the most visible decision in the sport because the options are stark and the result is quickly known. There are three choices: punt the ball away, attempt a field goal, or run a play and try to keep the ball. Each one has a different payoff and a different risk. This article explains how coaches weigh them, how the math behind the modern approach works, and why the right call in one game can be the wrong call in another.
The three options
Before the numbers, here is what each choice offers.
- Punt. The team gives up possession in exchange for field position. The result is nearly certain: the opponent will have the ball, and the only question is where. A punt costs the team the chance to score on this drive.
- Field goal. If the team is in range, it can try for three points. A made kick scores, and the opponent gets the ball after the kickoff. A miss gives the opponent the ball near the spot, and that spot is usually good field position for the other side.
- Go for it. The team runs a normal play and tries to gain the yards needed. If it succeeds, it keeps the ball and gets a fresh set of downs. If it fails, the opponent takes over at that spot, and the other team starts its drive from that spot.
None of these is always best. Each is a bet, and the right bet depends on the odds and the stakes.
The inputs that matter
Coaches look at a handful of variables, and most of them interact.
- Distance to go. Fourth-and-1 is very different from fourth-and-8. The shorter the distance, the more likely the conversion.
- Field position. Near the opponent's goal line, a failure costs little because the opponent has a long way to go. Deep in your own territory, a failure can give the opponent an easy score.
- Score and time. A team that trails late has to take chances. A team that leads late may prefer to protect the ball and the clock.
- The kicker's range and reliability. A kicker who can make long field goals makes the kick more attractive.
- The punter's skill. A punter who can pin opponents deep makes the punt more attractive.
- The quality of the offense in short yardage. A team with a strong offensive line and a physical running game is better at converting.
- The quality of the defense. A defense that can stop the opponent from scoring makes a failure less costly.
- Weather and surface. Wind, rain and cold affect kicking and passing.
- Game plan and tendencies. Opponents who can score quickly change the calculation.
A good staff decides most of this before the game, often in the form of a chart or a set of guidelines that describe what to do in different situations.
Expected points: the idea behind the math
The modern approach rests on a simple concept called expected points. Over many games, a team that has the ball at a given spot on the field, say first-and-10 at its own 25, scores a certain average number of points on that drive and the drives that follow. Analysts measure those averages for every down, distance and field position. The farther the ball is from your end zone, the higher the average.
With expected points, a coach can compare the outcomes of each choice in the same units. If a punt leaves the opponent with a certain expected value, a conversion gives your team a different one, and a failed attempt gives the opponent another, the coach can calculate which choice results in the best average outcome.
Our article on how NFL teams use analytics describes where such numbers come from. For the rest of this article, all the figures are invented to illustrate the method. They are not real statistics.
A worked example of the break-even idea
The key insight is that going for it makes sense whenever the chance of success is higher than a break-even probability. That probability depends on how much you gain if you succeed, how much you lose if you fail, and what the punt is worth.
Let's use invented numbers to see how it works. Values are measured from your team's point of view in expected points. A positive number is good for you, and a negative number is good for the opponent.
| Situation | Punt value | Value if you convert | Value if you fail | Break-even chance |
|---|---|---|---|---|
| Fourth-and-2 at the opponent's 38 (hypothetical) | -0.3 | +2.8 | -1.2 | about 23% |
| Fourth-and-3 at your own 25 (hypothetical) | -0.5 | +0.6 | -3.8 | about 75% |
Here is the arithmetic for the first row. If the chance of conversion is p, the average value of going for it is p times 2.8 plus (1 minus p) times -1.2. Setting that equal to the punt value of -0.3 gives p = 0.225, or about 23 percent. If your team believes it can convert more than that, going for it is the better bet in this invented model.
For the second row, the failure is far more costly, because the opponent takes over near your goal line, and the reward for succeeding is smaller. The break-even chance is about 75 percent, which is probably higher than any team could count on for fourth-and-3. In this invented example, punting is clearly better.
The lesson is not the numbers but the shape. The same distance can call for opposite decisions depending on where on the field you are. Near the opponent's end zone, failure is cheap and success is valuable. Near your own, the reverse is true.
Win probability: when the clock matters
Expected points work well for the early part of a game. Late in a game, coaches care more about win probability, the chance of winning given the score, the time left and the field position. This changes the calculation.
- Trailing late. A team that is behind needs possessions and points. Punting gives the ball away and uses the clock, which may leave too little time to come back. Going for it can be correct even when the odds are poor, because the alternative is a near-certain loss.
- Leading late. A team that is ahead wants to run the clock. Going for it and converting ends the game or takes the clock. Failing hands over a short field. The decision depends on how large the lead is and how much time remains.
- Tied or close. The coach looks at the whole picture, including overtime rules and the likelihood of scoring.
This is why a decision that looks reckless in the first quarter can be sound in the fourth, and why a punt that looks safe in the fourth can lose a game. Our guide to clock management shows how closely time and possession are linked.
Why many coaches punted more than the math suggests
For a long time, coaches punted in situations where analysts argued that going for it was better. Several reasons explain why.
- Visibility of failure. A failed fourth-down attempt is highly visible and easy to criticize. A punt that leads to a long drive for the opponent is less memorable.
- Job security. Coaches are judged by wins and losses and by public reaction. Following convention can feel safer than following a model.
- Uncertainty about the inputs. A coach who is unsure about his team's conversion chance may prefer a safer choice.
- Tradition. For decades, "punt on fourth down" was the default, and teams that departed from it were seen as gamblers.
Over time, more teams have adopted analytics-based thinking and many are more willing to go for it than they once were. That does not mean they go for it every time. The best staffs aim to match the decision to the situation, and they accept that a good decision sometimes fails.
Decisions, not results
A common mistake is to judge a decision by its outcome. A coach who goes for it on fourth-and-1, fails, and loses the game will be criticized, even if the odds favored the attempt. A coach who punts and wins will be praised, even if the punt was a poor choice. In truth, a good decision can fail, and a bad decision can succeed.
Football is a game with a lot of luck. A conversion that is 60 percent likely will fail four times in ten. If a coach makes the same decision a hundred times, the average results are what matter. This is why analysts emphasize the process: gather the best information, choose the option with the best expected outcome, and accept the variance.
Putting a chart to work
Many staffs boil all of this into a fourth-down chart: a grid of field position and distance that tells the coach what to do before the game starts. A chart is only a starting point. Coaches adjust it for the weather, for the strengths of their own kicker and offensive line, and for the opponent. A team that has a short-yardage play it trusts, one that it has repeated in practice all week, will treat fourth-and-1 differently from a team that has no such play. The call is also shared with others on the staff, such as an analyst or a coach in the press box, who can check the chart while the head coach focuses on the field.
The conversation on the sideline is usually short and follows a pattern: the distance, the field position, the score and clock, and the chosen play. The best staffs rehearse these decisions so that the choice is made calmly rather than in the tension of the moment.
Special situations
Some fourth downs follow their own logic.
Fourth-and-goal
Near the goal line, the choice is between a field goal and a touchdown attempt. A field goal is nearly automatic from short range, but it scores three points, and a touchdown scores seven. Coaches weigh the chance of scoring a touchdown against the cost of failing. Our article on goal-line offense and fourth-and-short covers how teams design plays for those moments.
Your own territory
Deep in your own territory, the risk of failure is highest, and the reward is lowest. Most coaches punt unless the game is on the line.
The no-man's land
Between the opponent's 35 and 45, a field goal may be out of range and a punt may not gain much. This is the zone where the decision is most difficult, and where coaches often rely on their charts.
Fourth down after a penalty
A penalty before the snap can change the distance and the field position, and with them the decision. Coaches sometimes use a timeout to rethink the call rather than send the wrong unit onto the field.
How level changes the answer
The analysis above is based on the professional game. At other levels, the numbers differ.
| Level | What changes |
|---|---|
| NFL | Kickers are reliable, punters are skilled and defenses are strong, so the margins are small. |
| College | Kickers vary widely in range and consistency, and tempo and play-calling styles differ, which changes conversion chances. |
| High school | Kickers and punters are often inconsistent, so a punt may gain little and a field goal may be unlikely. Going for it can be the stronger choice more often, but depth and execution also vary. |
| Youth | Many leagues limit or remove punting and kicking, so the decision may not exist. |
Because these differences are real, a high school coach should not copy an NFL chart. The principles carry over, but the numbers do not. Check your own team's conversion history if you coach, and look at results in the high school directory to follow local games.
What fans can watch for
When your team faces a fourth down, try asking a few questions before the coach decides.
- How many yards are needed, and what kind of play might get them?
- Where is the ball on the field? How costly would a failure be?
- What is the score, and how much time is left?
- Does the kicker have the range for a field goal?
- How good is the defense at stopping the opponent from scoring from here?
You can follow how your favorite team has performed in tight games by browsing its team page and recent scores, and you can check the standings to see how much a single game might matter.
The short version
- Fourth down offers three choices: punt, kick a field goal or go for it. Each is a bet with a different payoff.
- Distance, field position, score, time, kicker, punter and the quality of the offense and defense all matter.
- The break-even idea says to go for it whenever the chance of success is greater than the cutoff for that situation. The cutoff is low near the opponent's goal line and high near your own.
- Late in games, win probability matters more than expected points. Trailing teams must take chances.
- Judge decisions by process, not results. A well-chosen attempt can fail.
- Levels differ. A high school or youth coach should not simply copy an NFL chart.