Week 1 argued with last season. Seven of the fourteen teams that played in January lost their opener. Kansas City, 6–11 a year ago, beat Denver, 14–3 a year ago, by twenty-one points on Monday night. The Rams took the second-best offense in football to Melbourne and scored seven. Three of the four teams that went 3–14 last year — Arizona, Las Vegas, the Jets — won. And Seattle beat New England again, 13–10, in the Super Bowl rematch that opened the season on Wednesday night.
Two weeks ago, in the final issue before real games, this newsletter built a ruler for exactly this moment: ten seasons of openers, checked against what came next. The opener is worth something — Week 1 winners reached the playoffs 59% of the time, losers 26% — but last season predicts the rest of the year better than the opener does. One game of offense is worth nearly a whole prior season of offense; one game of defense is closer to noise. And for players, the usage carries and the box score mostly doesn't.
So this issue does one thing: it holds Week 1 up to that ruler. Four stories, and what the ruler says about each.
Believe Chicago's offense. Don't believe the 59.
The loudest number of the week is the Bears' 59 points in Charlotte, and the loudest take is that Caleb Williams is an MVP and the offense is historic. Take the two claims apart.
Chicago's offense is the kind the ruler says to believe, and Williams' game is why. He completed 21 of 29 for 269 yards and two touchdowns, ran ten times for 65 yards and two more, and threw zero interceptions. By expected points per dropback — how many points each snap added to the expected score — he was third of the 32 starting quarterbacks; by completion rate over expectation he was second. The charting has none of his 29 throws as interception-worthy. And Chicago's offense was not new to this: it ranked eighth in the league by EPA per play across all of 2025, an 11–6 playoff team. An offense that was already top-ten producing one of the two best games of the opening week is the signal that carries forward. The caveat: a quarter of Week 1's top-five offenses finish the rest of the season in the bottom half.
The 59 is a different object. Chicago ran for 291 yards, the most of any team in Week 1 — 232 of them on 32 designed runs, and Carolina showed a light box on 19 of those 32. Six of the eight touchdowns were runs: D'Andre Swift three, Williams two on scrambles, Kyle Monangai one from 61 yards out. Eight of Chicago's fourteen drives ended in a touchdown, the most in the league by three — no other team had more than five. Eight plays gained twenty or more yards, also the most; nobody else had more than seven. It was 24–24 with half a minute left in the second quarter before Williams scrambled 29 yards for the go-ahead score, and Carolina handed over three possessions, one of them a muffed punt recovered at the Panthers' 28. Carolina's defense finished Week 1 ranked 31st or 32nd by EPA per play allowed depending on how you count the plays; the Bears' own defense ranked 24th and gave up 361 passing yards and three touchdowns to Bryce Young.
For the record: 96 combined points is the most in any Week 1 game since 1999, when the previous high was 88, and Chicago's 59 ties the most one team has scored in a Week 1 game in that span. Across every regular-season game since 1999, only four have had more. That is what a top-ten offense against a bottom-two defense that gave the ball away three times looks like. The offense is real. The 59 is an event.
Don't give up on the Rams. Don't wave it off, either.
Los Angeles ranked second in offensive EPA per play across all of 2025 and went 12–5. On Thursday in Melbourne that offense ranked 28th of 32 for the week. Matthew Stafford went 15 of 25 for 155 yards, no touchdowns and an interception, and by EPA per dropback was 31st of the 32 starters. Three of the Rams' 28 throws were charted interception-worthy, all three of them Stafford's. This offense's rate across all of last season, on 598 throws, was 2.3%. The 10.7% for the week was the highest in the league, and it was three throws.
Here is where the ruler earns its keep, because it doesn't say what either side wants. Last season's offense predicts the rest of this season at 0.374; one game of offense predicts it at 0.334. Each carries about the same signal on its own, so neither the season nor the game settles it. A team that was second over seventeen games and 28th over one is, on the evidence, neither the super team nor finished, and the honest position is to hold that until Week 3. One charting change to track: play-action fell from 34.6% of dropbacks last season to 17.2% on Thursday.
The same reading applies, in the other direction, to two teams on the same page of the ruler. New England ranked first in offense across 2025 and 22nd in Week 1; Drake Maye's three interceptions were the most of any quarterback, and the last one — deep right for Hollins, picked in the end zone with 26 seconds left, down three — was the single biggest swing in win probability in any regulation snap of the week, 42 percentage points. One game, against the defense that allowed the fewest points in football last year.
And the Giants, who were 4–13, ranked first or second in offense for the week: Jaxson Dart went 23 of 29 for 230 yards and three touchdowns, second among starters by EPA per dropback, and New York converted nine of ten third downs, the best of the week. The caveat: the Giants' offense ranked tenth across 2025 already — the record was the defense — and they did it against Dallas, whose defense ranked last in the league in 2025 and 31st or 32nd in Week 1.
Don't believe Kansas City's defense yet. Believe the running game.
Kansas City's defense allowed −0.378 expected points per play against Denver, the best figure in the league for the week. The ruler is blunt about that number: Week 1 defense carries forward at 0.157, the weakest signal in Issue 5, and this defense ranked 13th across 2025. Denver's offense finished the week 32nd of 32, so it is not clear how much of that number is Kansas City's.
The half of Monday night to believe is the one the ruler trusts. Kansas City ran 35 times for 224 yards, and by expected points per rush it was one of the two most valuable run games of the week, with Chicago's. Kenneth Walker III, who was in Seattle last season, carried 23 times for 173 yards, the most rushing yards of any player in Week 1 — Jahmyr Gibbs was second at 156 — and his rushing touchdown came on fourth-and-one from the Chiefs' own 40, a 60-yard run that was the biggest play of the game. Denver put seven or more defenders in the box on 19 of Kansas City's 31 designed runs. Walker's share of his team's carries was 60.5%; in Seattle last year it was 43.6%. Week 1 carries are the usage number that carried forward at 0.72 over ten seasons of openers. The defensive ranking is the one that didn't.
Houston is the mirror. The Texans' defense ranked second in the league across 2025 and 29th in Week 1 after allowing 36 to Buffalo. By the same ruler, that ranking carries the weakest signal of any number in this issue.
The Week 1 hero, on schedule
From Issue 5: of the twelve highest-scoring receivers in a Week 1, 28% were top-twelve over the rest of the season; across all receivers, Week 1 target share carried forward at 0.65 and Week 1 points at 0.56.
Jalen Coker caught eight of nine targets for 138 yards and two touchdowns in that Carolina game, 29.8 points in Half-PPR, the top wide receiver in football for the week. Across 2025 he averaged 6.7 points per game, 56th among receivers. Christian Watson was second at 29.7 on six catches for 147, 81 of them on one touchdown. Justin Jefferson was third. Of the twelve highest-scoring receivers of Week 1, four were top-twelve by points per game last season — Jaxon Smith-Njigba, Amon-Ra St. Brown, Chris Olave, Nico Collins — and eight were not. Exactly one of last year's Week 1 top twelve is in this year's: Zay Flowers, the top receiver of Week 1 in 2025, fifth this week on five catches for 150 yards. The base rate says most of this list won't hold.
Read the usage instead. Coker's share of Carolina's targets was 26.5%, against 14.9% last year; that is the number to check in Week 2, not the 138. Jefferson's was 39.1%, against 30.1% across 2025. Isaiah Likely, the top tight end of the week with eight catches on eight targets for 78 yards and two scores, drew 27.6% of the Giants' targets; in Baltimore last season his share was 12.4%. And at running back the two headliners are the same lesson from both ends: Derrick Henry, first with 24 carries for 144 yards and three touchdowns, was seventh by points per game last year and took 64.9% of Baltimore's carries against 60.6% then — a top-twelve back doing his job. Walker, second, is the one whose role changed, and his carry share is the receipt.
Real or Noise
The verdicts, calibrated. These grade the story, not the team.
- "Chicago's offense is historic and Caleb Williams is an MVP": leaning real on the offense, noise on historic; the MVP half can't be graded on one game. Third among starters by EPA per dropback, second by completion rate over expectation, zero interception-worthy throws, on an offense that ranked eighth across 2025 — that carries. The 59 came with 291 rushing yards against a defense that showed a light box on 19 of 32 designed runs and gave the ball away three times, and 96 points is the most in a Week 1 game since 1999; across all regular-season games since then, four have had more.
- "Matthew Stafford is done and the Rams were a mirage": leaning noise, held honestly. Three interception-worthy throws on Stafford's 25 is one game; 2.3% on 598 throws is last season. Each carries about the same signal on its own, so the honest answer is that neither settles it — not "fine," and not "done."
- "The Chiefs are back": split. The run game, one of the two most valuable of the week at 224 yards on 35 attempts with Walker taking 60.5% of the carries, is the part the ruler trusts. The defense ranked best in the league for the week and 13th across 2025, and Week 1 defense carries forward at 0.157. Believe the run game; wait on the defense.
- "Jaxson Dart and the Giants are real": leaning real, on a curve. Second among starters by EPA per dropback and nine of ten on third down is real; so is the fact that this offense already ranked tenth across 2025. The curve is Dallas's defense, 32nd last year and 31st or 32nd this week.
- "The Week 1 breakout receiver is real": leaning noise, again. Eight of the twelve top receivers were outside the top twelve last year; 28% of a Week 1 top twelve stays there. Coker's 26.5% target share is the number to grade him on next Wednesday.
The Receipts
Verified numbers worth keeping in your pocket.
- Seven of 2025's fourteen playoff teams lost in Week 1 — Denver, the Rams, Green Bay, the Chargers, Houston, New England and Carolina — and three teams that went 3–14 won.
- Chicago ran for 291 yards, scored touchdowns on eight of fourteen drives and gained twenty-plus yards eight times, each the most in the league. 96 combined points is the most in any Week 1 game since 1999; only four regular-season games in that span have had more.
- Kenneth Walker's 173 rushing yards led Week 1 and his carry share was 60.5%, against 43.6% in Seattle in 2025. Week 1 carries carried forward at 0.72 across ten seasons of openers; Week 1 defense, which Kansas City topped, carried at 0.157.
Where to hear it
Muffed is an AI that reads every play, every box score and every advanced stat from all 32 teams — and tells you the real story of the game. Every number above was checked against the source data before it shipped. That's the house rule, and the receipts are in the footer.
This was the first week that reading happened twice for every team. The Recap of each game is up — Chicago's and Kansas City's are the two behind this issue — and What Repeats, the charting read that followed a couple of days later, is where the Rams' interception-worthy throws and Denver's box counts came from: Los Angeles, Kansas City. The players above have their own pages — Caleb Williams, Kenneth Walker III, Derrick Henry, Justin Jefferson — with a weekly episode each, and so does every stat board on the site, now carrying Week 1.
Follow a team, a player, a board, or this issue at muffed.ai and it all arrives in one email on Wednesday. If someone forwarded you this, the Read is free, and it's better when it just shows up.
Next week: two games of evidence, and the first thing that repeated.
Methodology: Week 1 of 2026 is the sixteen games from Wednesday, September 9 through Monday, September 14. Team offense and defense are expected points added per play on pass and rush plays (offense as the possession team, defense as EPA allowed), ranked among all 32 teams; the Bears' and Giants' offenses, and the Cowboys' and Panthers' defenses, swap places at the top and bottom depending on whether penalty no-plays and scrambles are counted, so the text says "one of the two best" or "31st or 32nd" where it matters; unqualified ranks use the pass-and-rush-play count, and the other count moves them by at most two places. Quarterback EPA per dropback and completion rate over expectation are ranked among the 32 quarterbacks with at least fifteen attempts, one per team. Run-game value is EPA per rush on the count that treats scrambles as runs, under which Chicago is first and Kansas City second; the other count reverses them. Win probability is the nflfastR model, regulation snaps only, and swings are in percentage points of win probability. Charting figures are FTN charting via nflverse: interception-worthy throws are per pass attempt excluding sacks, play-action is per dropback, "designed runs" exclude scrambles, and a light box is six or fewer defenders. Fantasy points are Half-PPR; "top twelve" is by Week 1 points, and "last season" ranks are by points per game among players with at least eight 2025 games. Target and carry shares are the player's share of his team's targets or carries in the games he played. The 2016–2025 base rates quoted from Issue 5 are historical averages over the rest of the season that followed each opener, not forecasts, and "2025" everywhere means the 2025 regular season. Data via nflverse; FTN Data via nflverse.