Seattle's 12-Game Winning Streak Died on Three Turnovers — and That's the Warning

by Earl·September 29, 2026

Seattle's 12-Game Winning Streak Died on Three Turnovers — and That's the Warning

The defending Super Bowl champions went to Landover, Maryland, got their starting quarterback back, put up 31 points, gained more yards, and lost. That sentence is the entire Week 3 story for the Seattle Seahawks, and it's a more useful one than the 2-0 record they carried into it.

Darnold's return was real — the result was not

Sam Darnold was cleared from the glute injury that cost him all but five snaps of the season opener, and he looked like a quarterback who hadn't missed a beat: 379 passing yards, four touchdowns and two interceptions on 45 attempts. The offense looked structurally different with him under center, spreading the ball beyond Jaxon Smith-Njigba in a way Drew Lock's more conservative, 127.3-rated caretaker run hadn't required.

For one afternoon, that didn't matter. Three Seahawks turnovers turned directly into 21 Washington points — the kind of arithmetic that erases a 379-yard passing day. Seattle's whole identity over this run has been built on ball security plus a defense that punishes mistakes, and Week 3 was the first time in a long time that the ledger ran the wrong way.

It also came against a familiar antagonist. Marcus Mariota is now 3-0 as a starter against Seattle across his career, and this one will sting worse than the others, because Washington was missing Jayden Daniels and had entered the week winless and leaking points.

The defense finally blinked

Through two games, the Seahawks had allowed 8.5 points per contest and posted a plus-1.5 turnover margin. They gave up 33 in Week 3. Season-long, Seattle is now surrendering 16.7 points per game with a 25.0-point offense and an 8.3-point differential — still healthy numbers, but the defense's margin for error shrank the moment the takeaways stopped coming.

That's the part worth watching going forward. A team built to win 17-10 can't survive a turnover tax once the opponent is scoring on short fields. Seattle's pass defense has also absorbed losses in the secondary — the Week 3 inactives list thinned the back end, and the injury report has been packed with hamstring and knee designations across the defensive backfield.

Where this leaves the season

Seattle is 2-1 and second in the NFC West behind a 3-0 San Francisco team. The 12-game winning streak that had become a franchise record is over, which is less a crisis than a reset of expectations: this is a very good team, not an unbeatable one, and the difference between those two things is roughly three possessions of sloppy football.

The good news is the schedule hands them a soft landing. The Chargers visit Lumen Field in Week 4 at 0-3, averaging 14.7 points per game while allowing 25.3. That's a defense Seattle's offense — with Darnold healthy and the receiving room stretched out — should be able to move the ball against without needing to be perfect. Getting back to a clean, turnover-free formula at home is the fast fix.

The caution is that Darnold's durability is now a live variable rather than an assumption. He's coming off a Pro Bowl season and a Super Bowl title, but he's already missed most of one game this year, and Seattle's drop-off to Lock — however impressive Lock was in relief — changes the offense's shape. If the Seahawks are going to defend a title, they need Darnold on the field and the football in their own hands. Week 3 showed what happens when they only get one of those.