Brock Purdy’s four-game no-sack streak ended in Seattle, but the 49ers kept winning

Four weeks without a sack

The 49ers completed their fourth consecutive sack-free game in a 24–14 win over Denver on October 4. Purdy finished that afternoon with 19 completions on 30 attempts, 218 passing yards and two touchdowns. [4]

The Associated Press reported that San Francisco was the first team to open a season with four games without allowing a sack since the 2005 Indianapolis Colts. It was the fifth such start since team sacks began being tracked in 1963. [3]

Against Denver, the offense also produced 140 rushing yards. George Kittle caught four passes for 70 yards, including a 56-yard touchdown reception late in the fourth quarter that helped secure the win. [4]

Seattle broke through

Defensive tackle Byron Murphy II accounted for two of Seattle’s three sacks on October 11; linebacker Ernest Jones IV recorded the other. Murphy also generated seven pressures, matching his career high, according to the Seahawks’ report citing NFL Next Gen Stats. [1]

That performance illustrates why a sack total captures only part of a passing game. Seattle was able to disrupt Purdy and end the streak, yet those defensive successes did not decide the final result. [1] [2]

An unbeaten record survived

San Francisco entered the fourth quarter trailing 26–21. Purdy’s seven-yard touchdown pass to Brandin Cooks, followed by a two-point completion to Mike Evans, put the 49ers ahead 29–26. Seattle then tied the score. [2]

Eddy Piñeiro’s 44-yard field goal with two minutes remaining restored the lead. On Seattle’s final fourth-down attempt, Malik Mustapha tackled Cooper Kupp one yard short of the line to gain, sealing the 32–29 result. [2]

The outcome left two different records to describe: the protection streak had ended after four games, while the 49ers’ winning start extended to five. [1] [2]