What Is DVOA in Football? Defense-Adjusted Value Explained

DVOA in football stands for Defense-adjusted Value Over Average, and it measures how efficient a team is on a play-by-play basis compared with a league-average baseline — then corrects that figure for the quality of opponents faced. It is expressed as a percentage centered on zero. A 0% DVOA is exactly average; a +20% offense is 20 percent more efficient than average; a −15% defense is 15 percent better than average at stopping teams. Created at Football Outsiders and now published by FTN, it was one of the first widely used metrics to grade situational efficiency rather than raw yards and points.

The idea behind it

DVOA rests on a simple insight that box scores miss: not all yards are equal. Gaining 4 yards on third-and-3 is a success; gaining 4 on third-and-10 is a failure. DVOA takes every play, compares its result to what an average team would do in that exact down, distance, and field position, and scores it as value above or below that baseline. Sum those up and you get a team’s efficiency — but only after two more layers.

• The success baseline. Every situation has an expected level of success drawn from league-wide history. A play is graded against that, not against zero.
• The opponent adjustment. This is the “defense-adjusted” part. Production against a top-five defense counts for more than the same output against the league’s worst, and DVOA scales accordingly. Over a season this matters enormously, because schedules are lopsided.

The math is proprietary, so you read DVOA rather than compute it. What you need to know is what it captures: efficiency, in context, adjusted for who you played.

How to read the percentage

The sign flips meaning depending on the unit, which trips up newcomers.

Unit	Good direction	Elite range
Offense	Positive	+25% or higher
Defense	Negative	−20% or lower
Total team	Positive	+25% or higher

So a defense posting −18% DVOA is excellent — it is holding opponents 18 percent below average. An offense at −18% is the opposite: badly inefficient. Total DVOA blends offense, defense, and special teams into one team number, where positive is always better.

For a rough sense of the tiers on offense:

Offensive DVOA	Rating
+20% and up	Elite, Super Bowl-caliber
+10% to +19%	Very good
0% to +9%	Above average
−10% to −1%	Below average
Below −10%	Poor

A worked example of the logic

Imagine two offenses that both average 6.0 yards per play — identical by the traditional stat. Offense A piled up those yards against the league’s softest defenses; Offense B did it against a gauntlet of top units. DVOA sees them very differently: after the opponent adjustment, Offense B might grade at +18% while Offense A lands at +7%, despite matching yardage. That gap is the entire value of DVOA — it refuses to let an easy schedule inflate a team’s efficiency.

Why DVOA matters, and where it falls short

DVOA earned its place because it predicts future performance better than raw yards or points, and because the opponent adjustment makes early-season records less misleading. It is a go-to for ranking teams beyond their win-loss column.

It has limits. The formula is a black box, so you cannot audit exactly why a number came out as it did. Like all per-play metrics it can be noisy over a handful of games, and the opponent adjustment early in a season leans on a small sample of opponents whose own quality is not yet settled. That is why analysts read it alongside other measures rather than treating it as gospel.

The closest cousin is EPA in football, which shares the per-play, situation-aware approach but is built on expected points rather than a success baseline. Both underpin how modern quarterbacks are judged — compare that with the traditional passer rating formula and the situation-adjusted QBR. To see which teams’ efficiency translates into the biggest paydays, the highest-paid NFL players tracks the stars who drive these numbers.

If you would rather put efficiency thinking to work in a lineup, our fantasy football trade calculator grades deals on real output.

In short: DVOA is opponent-adjusted efficiency per play against a league baseline, shown as a percentage where 0% is average — positive for a strong offense, negative for a strong defense, and past 25% for the elite.