What Does EPA Mean in Football? Explained

By Sarah Miller · February 7, 2054

EPA in football stands for Expected Points Added, a metric used to measure the impact of a play by comparing the expected points before and after the play, factoring in down, distance, field position, and time. It quantifies how much a single play increases or decreases a team’s chances of scoring.

What Is EPA and Why Does It Matter in Football?

Expected Points Added (EPA) is a crucial advanced statistic in modern football analytics. Unlike traditional stats like yards or touchdowns, EPA evaluates the effectiveness of each play based on real-time game context. For example, a 5-yard gain on 3rd and 4 has more value than the same gain on 3rd and 10. EPA captures this nuance.

How EPA Differs From Traditional Stats

Traditional stats often lack context (e.g., a 10-yard run on 1st down vs. 3rd and 9)
EPA accounts for game state: down, distance, field position, and score differential
It assigns point values to situations based on historical scoring outcomes
EPA can evaluate quarterbacks, receivers, defenses, and even coaching decisions

How Is EPA Calculated?

EPA is derived from historical data on scoring outcomes in similar game situations. The formula is:

EPA = Expected Points After Play – Expected Points Before Play

A positive EPA means the play improved the team’s scoring chances; negative EPA means it hurt them.

Key Inputs for EPA Calculation

Down and Distance: 1st and 10 at midfield has higher expected points than 3rd and long
Field Position: Closer to the end zone = higher expected points
Time Remaining: End-game scenarios affect risk-reward calculations
Score Differential: Teams trailing late may take more risks, affecting EPA models

Down	Distance	Yard Line	Average Expected Points
1st	10	50	2.1
2nd	5	30	3.4
3rd	15	75	0.8
4th	2	20	2.9
1st	10	10	5.2

Table data source:1, 2

The table shows how expected points vary significantly with game context. A 1st & 10 at the opponent’s 10-yard line averages 5.2 expected points, reflecting high scoring probability. In contrast, a 3rd & 15 from the 25 (own side) has only 0.8, showing limited immediate scoring chance. These baselines are essential for calculating EPA on every play.

Applications of EPA in Player and Team Evaluation

EPA is widely used across the football analytics community to assess performance beyond surface-level stats.

Quarterback Analysis Using EPA

Quarterbacks are often judged by EPA per play. A high EPA/play indicates consistent decision-making and efficiency. For instance, elite QBs like Patrick Mahomes and Joe Burrow rank at the top in EPA/play due to their ability to convert tough downs.

Defensive EPA and Unit Performance

Defenses can also be evaluated using EPA. A defense that consistently forces negative EPA plays (e.g., sacks, incomplete passes on key downs) is performing well. Defensive EPA is especially useful in identifying units that excel in high-leverage situations.

Play-Calling and Coaching Decisions

Coaches are analyzed based on average EPA of run vs. pass calls, 4th down decisions, and play selection in critical moments. Teams like the Kansas City Chiefs under Andy Reid show above-average EPA on early downs, indicating effective offensive design.

Limitations and Criticisms of EPA

While powerful, EPA has limitations:

It relies on historical averages, which may not reflect current team strengths
Does not account for player effort or scheme-specific advantages
Can be noisy over small sample sizes (e.g., one game)
Contextual factors like weather or injuries aren’t directly included

Analysts often pair EPA with other metrics like Win Probability Added (WPA) for a fuller picture.

Common Questions About EPA in Football

What does EPA stand for in football?

EPA stands for Expected Points Added, a metric that measures the point value a play contributes based on changes in scoring probability before and after the play.

How is EPA different from DYAR or YAC?

Unlike DYAR (Defense-adjusted Yards Above Replacement) or YAC (Yards After Catch), which focus on volume or comparison to average, EPA evaluates situational impact. It tells you how valuable a play was in context, not just how many yards were gained.

Can EPA be used to evaluate defensive players?

Yes. While EPA is typically calculated from the offense’s perspective, negative EPA plays (like sacks or pass breakups on 3rd down) indicate strong defensive performance. Aggregated defensive EPA helps assess unit effectiveness.

What is considered a good EPA per play?

An EPA per play above +0.2 is generally strong for offenses or quarterbacks. Below -0.1 indicates poor performance. Elite seasons, like Mahomes’ 2022, have exceeded +0.3 EPA/play.

Where can I find EPA statistics for NFL players?

NFL Savant (nflsavant.com) and Pro Football Reference (pro-football-reference.com) offer detailed EPA data for quarterbacks, receivers, and teams. The NFL’s own Next Gen Stats platform also includes EPA-based insights.