The Bills defense ranking through Week 6: 28th in points allowed (28.5 a game, up from 21.5 last year), 30th in points given up per play and 31st in plays won. Buffalo is 5-1 anyway. The pass defense is the leak, the pass rush is one man, and third and long is wide open.
Updated after Week 6, heading into the bye.
What's going on
Buffalo has scored 30 or more in four of six games. It has also allowed 30 or more in four of six. One of those streaks is a plan. The other is a problem.
A year ago this was the 12th-ranked defense. Average, and average is plenty when your quarterback is Josh Allen. Now it sits in the bottom five in points a drive, points a play and plays won. The offense is the reason the Bills sit high in our power rankings, and why a 5-1 team belongs in a Fraud Meter conversation at all.
Is it just garbage time?
Two good excuses. One survives.
Garbage time is real. Every one of Detroit's 31 points came with Buffalo up 17 or more. On the season, 20% of the points the Bills have allowed came in garbage time. League average is 8%. The scoreboard makes this defense look worse than it is.
Short fields are not. Only three opponent drives all year started at midfield or closer, for 10 points, all in the Chargers game. Buffalo turned it over five times that day and the defense still held the Chargers to 16.
So take both out and look again. Still 28th: 2.35 points a drive, against a league average of 1.80 (the chart up top). Then adjust for the schedule, which is dead middle, 19th-toughest. Per play, they go from 30th to 31st.
The excuses are worth about a touchdown a game. Take it off the board and Buffalo is still bottom five.
They fixed the wrong leak
For three straight years, Buffalo gave up 10-yard runs more often than almost anyone (30th, 31st, 30th). Last year the run defense finished 31st per play.
That got fixed. The run defense is 22nd, and 10-yard runs are down from 13% of carries to 9%. The new front is doing its job.
The pass defense went the other way. Seventh last year. 29th now.
They patched the roof and the basement flooded.
It isn't the deep ball. Throws of 20-plus air yards are about league average. The damage is underneath and in the middle. Throws of 10 to 19 yards gain 10.3 yards a pop on 72 attempts, and only eight defenses give up more on them. Short passes are completed 74.5% of the time (league average 70.7%). Nobody has to go over the top of this secondary.
Measured over each team's first six games since 1999, this is the worst Bills pass defense since 2010. That team started 0-8. This one is 5-1, which tells you who is carrying whom. The full split by down and area lives on the Bills tendencies page.
Is Greg Rousseau the whole pass rush?
Greg Rousseau had six sacks in the first three games. He has zero in the three since.
The sack line says he cooled off. He didn't. Rousseau leads the NFL in QB hits with 19. The rest of the Bills have 23 combined.
He is the pass rush. Ed Oliver hurt his knee in Week 4 and has played three of six games. Bradley Chubb has 1.5 sacks. When one man gets home and nobody else does, an offense can slide its protection toward him and give the quarterback the extra beat. Over the last three games, Buffalo sacked the quarterback on 1.4% of dropbacks, last in the league. Team sacks by week: 3, 4, 2, 1, 1, 0.
Rousseau hasn't disappeared. He's been left alone.
Why can't they get off the field?
Pair a soft middle with a one-man rush and you get the number that ends seasons. Offenses convert 41% of their third-and-7-or-mores against Buffalo. League average is 28%. Only Dallas is worse.
Third and 8 is the down a defense has already won. Against Buffalo it's a suggestion. And when the drive survives, it tends to finish: teams that reach the Bills' 20 score a touchdown 73% of the time, 26th.
The fourth quarter sends the bill
Buffalo gives up 12 points a game in the fourth quarter, the most in the NFL. The Bills led going into the fourth in four of six games and gave up 10, 14, 20 and 17 in those quarters. The Rams turned a 5-point deficit into overtime. The Raiders turned a 10-point deficit into a 3-point game.
Against every team's first six games since 1999, 893 of them, 12 a game is tied for 10th-most. The 2012 Bills gave up more.
To be fair to the defense, play for play the fourth quarter is no worse than the first three. It's bad all game. The points pile up late because trailing offenses have to throw, and throwing is the one thing this defense can't stop.
Why it happened
This is a new defense, and it plays like one.
Bosa, Milano, Tre'Davious White, Poyer, Taron Johnson, DaQuan Jones and Rapp all left after last season. Five of them played in the back seven. In came Chubb, C.J. Gardner-Johnson, Dee Alford and two second-round rookies, plus a new coordinator in Jim Leonhard and a new front. Leonhard has already benched Maxwell Hairston for rookie Davison Igbinosun, and last week he put it plainly: "It's time to be good at something."
Some of this is a learning curve, and six games of a rebuilt secondary is a small sample. The pass rush is different. Behind Rousseau, the rest of the roster has 5 sacks in six games. Reps don't fix that. People do. (Who's lining up where: the Bills depth chart.)
What should the Bills do with the bye?
- Buy a middle-of-the-field defender. A safety or a linebacker who can carry a seam. That's where the yards are, and the trade deadline is the cheapest place left to find one.
- Give Rousseau a partner. Anyone who wins one-on-one, so protections can't slide to him every snap. A healthy Oliver is the cheapest version. A rental edge is the next.
Elite offense, a defense that can't get off the field, an early January exit. Bills fans have seen this one. The bye is the last cheap chance to change the ending.
FAQ
What is the Bills defense ranking in 2026?Through Week 6, 28th in points allowed at 28.5 a game, up from 21.5 last year. They're also 30th in points given up per play (EPA) and 31st in the share of plays that go the offense's way.
What's wrong with the Bills defense?The pass defense fell from 7th in 2025 to 29th, and the middle of the field is where it bleeds: throws of 10 to 19 yards gain 10.3 yards a pop. The pass rush is one man deep. Greg Rousseau leads the NFL with 19 QB hits, the rest of the Bills have 23 combined, and Ed Oliver has played three of six games.
Is the Bills defense only bad because of garbage time?Partly, not mostly. 20% of the points Buffalo allowed came in garbage time (league average 8%). Take out garbage time and short fields and they still allow 2.35 points a drive, 28th (league average 1.80).
Is the Bills pass defense the worst in the league?Not quite. It's 29th, and through six games it's the worst Bills pass defense since 2010. Offenses convert 41% of third-and-7-or-more against Buffalo (league average 28%), 31st.
Can the Bills fix their defense on the bye?The run defense already got fixed (31st to 22nd). What's left is a middle-of-the-field safety or linebacker and a second pass rusher next to Rousseau. A healthy Ed Oliver is the cheapest version of the second one.
Numbers come from NFL play-by-play (nflverse), regular season, Weeks 1 to 6 of 2026, with 2023 to 2025 for comparison. Ranks are of 32, 1 = best defense. "Points given up per play" is EPA allowed; "plays won" is success rate. Garbage time means the Bills were up 17 or more, or up 11 or more in the last 10 minutes; a short field starts at midfield or closer. History uses each team's first six regular-season games, 1999 to 2026, and pass defense there is EPA per dropback. There is no 2026 pressure or coverage tracking yet, so the pass rush here is sacks and QB hits. Sources: Leonhard quote, Spectrum News; Oliver injury, Banged Up Bills; roster moves, 2026 Bills season. Next up after the bye: the matchup preview. Everything on Buffalo: the Bills team page. More team breakdowns: why the Bengals are the worst under-center offense. Build your own chart at sticktothemodel.com/charting.