Grade the Offense: Brock Purdy and Trent Williams Masterclass Headlines Week 6 PFF Metrics

Following a 23-17 victory over the Washington Commanders on Monday Night Football, Pro Football Focus (PFF) released its player grades and snap counts for the 6-0 San Francisco 49ers.

The offensive metrics highlighted another masterclass performance from quarterback Brock Purdy, continued dominance along the left side of the offensive line from Trent Williams, and a bittersweet, high-impact half from veteran wide receiver Mike Evans before his departure.

Brock Purdy earned an 82.5 overall offensive grade, his highest mark over the past month and his second-best single-game grade of the 2026 season (behind his 96.6 grade in Week 2).

Purdy completed 21 of 29 passes (72.4%) for 264 yards, one touchdown, and a 111.9 passer rating, earning a 76.7 passing grade. He also added 28 yards on five carries, showcasing his signature mobility.

Interestingly, Purdy performed even better when pressured, posting an 80.6 passing grade against heat compared to a 70.5 grade from a clean pocket.

Furthermore, by crossing the 1,500 career pass attempt threshold on Monday night, Purdy’s 105.6 career passer rating officially stands as the highest in NFL history among all qualified quarterbacks.

Left tackle Trent Williams posted an 80.6 overall grade, finishing as San Francisco's top lineman and the second-highest graded offensive lineman in the contest behind Washington right guard Sam Cosmi (81.3). Williams registered a game-high 90.2 pass-blocking grade while leading the 49ers with a 70.8 run-blocking grade. Right tackle Colton McKivitz also delivered a strong night, securing a 75.5 grade across 62 snaps.

In total, San Francisco surrendered just six pressures, with five charged to the offensive line:

Unsung blocking praise went to wide receiver Brandin Cooks, who earned a team-high 77.4 run-blocking grade across 16 run snaps downfield.

Before exiting in the second quarter due to an Achilles injury, Mike Evans was dominant. Evans earned a game-high 79.8 receiving grade, catching three passes on five targets for a game-high 94 yards.

Tight end George Kittle posted a 68.0 receiving grade (5 catches, 69 yards, 1 TD on 8 targets), while backup running back Kaelon Black logged the lowest receiving grade (59.1) after catching one pass for three yards.

Christian McCaffrey led all players on the field with a 77.9 run grade, rushing for 64 yards and two touchdowns on 16 carries (4.0 YPC). Purdy finished second on the team with a 77.1 run grade on his 28 rushing yards.

Rookie running back Kaelon Black continued to look sharp as a rotational asset, earning a 71.5 run grade after picking up 34 yards on eight carries (4.3 YPC).