Brock Purdy Fantasy Football Week 18: Stats and Projections vs. Seahawks

Quarterback Brock Purdy has a matchup against the 12th-ranked pass defense in the NFL (198.6 yards allowed per game) in Week 18, when his San Francisco 49ers play the Seattle Seahawks, Saturday at 8 p.m. ET.

For more details on Purdy, if you're thinking about him for your daily fantasy roster, scroll down prior to his upcoming matchup versus the Seahawks.

Thinking about playing Purdy this week? Start building your FanDuel fantasy football lineup today!

Brock Purdy Week 18 Fantasy Football Projection

• Matchup: San Francisco 49ers vs. Seattle Seahawks
• Game Date: January 3, 2026
• Game Time: 8 p.m.
• Projected Fantasy Points: 16.9
• Projected Passing Yards: 250.07
• Projected Passing TDs: 1.60
• Projected Rushing Yards: 16.05
• Projected Rushing TDs: 0.15

Projections provided by numberFire

Purdy Fantasy Performance

• With 172.2 fantasy points this season (21.5 per game), Purdy is the 24th-ranked player at the QB position. He ranks 48th among all players.
• In his last three games, Purdy has amassed 94.0 fantasy points (31.3 per game), completing 72-of-97 throws for 893 yards, 11 touchdowns, and two interceptions. He's added 83 rushing yards on 15 carries with two touchdowns on the ground.
• Purdy has connected on 111-of-158 throws for 1,254 yards, with 13 touchdowns and five interceptions, in his last five games, resulting in 118.4 total fantasy points (23.7 per game). With his legs, he's added 103 rushing yards on 23 attempts with three TDs.
• The peak of Purdy's season as a fantasy producer came against the Chicago Bears last week, as he posted 36.9 fantasy points by passing for 303 yards and three passing touchdowns with one pick. As a runner, he contributed 28 rushing yards on six carries (4.7 YPC) with two scores.
• From a fantasy standpoint, Brock Purdy delivered his worst fantasy-point total of the season (7.3 points) in Week 12 against the Carolina Panthers, passing for 193 yards and one touchdown with three picks.

Sign up for FanDuel Sportsbook and FanDuel Daily Fantasy today!

Seahawks Defensive Performance

• Two players have registered more than 300 yards passing in a game against Seattle this season.
• The Seahawks have allowed 12 players to pass for at least one TD in a game this year.
• Seattle has given up at least two TD passes to seven opposing QBs this season.
• Just one player have thrown for at least three touchdowns in a game versus the Seahawks this season.
• A total of four players have recorded more than 100 yards receiving in a game against Seattle this season.
• The Seahawks have allowed 19 players to catch a TD pass against them this year.
• Seattle has allowed two or more receiving touchdowns to just one player this year.
• The Seahawks have not allowed more than 100 yards rushing to an opposing player this season.
• Seattle has allowed eight players to score at least one rushing touchdown versus them this year.
• Only one player has run for more than one touchdown against the Seahawks this season.

Want more data and analysis on Brock Purdy? Check out FanDuel Research for all the latest and in-depth fantasy and betting coverage.