The NFC’s top seed is up for grabs on Saturday night when the San Francisco 49ers (12-4) host the Seattle Seahawks (13-3) in Week 18.
The pregame narrative: San Francisco won the first matchup between these teams, giving it the tiebreaker, which will ultimately be the difference should it sweep the season series. The Niners are a slim home underdog with star tackle Trent Williams likely out with a hamstring injury.
Check out my Seahawks vs. 49ers SGP predictions for Jan. 3, featuring prop bets on Brock Purdy and George Kittle.
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Seahawks vs. 49ers SGP
SGP: 49ers +7.5 | Purdy 2+ passing TDs | Kittle anytime TD | Barner 30+ receiving yards (+450)
49ers +7.5 (-315): This matchup has all the makings of an instant classic. And with that being the case, I expect it to come down to the wire.
Backing either team to cover a touchdown would work. But San Francisco doesn’t get blown out when Purdy is under centre, so I’m very confident the Niners can cover this number, if not win outright.
- The Niners are 7-1 when Purdy has played this year, with the lone loss being by five points to the 12-4 Jaguars.
- In those games, they averaged 31.5 PPG.
- Purdy has covered this number in all six starts vs. Seattle, winning five of those games outright.
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This pick isn’t disrespecting the Seahawks in any way. They’re a great team. But I have more faith in the home side coming through in a divisional showdown.
Saturday night football SGP picks
Purdy 2+ passing TDs (-137): Remember when there was chatter that Mac Jones could do Purdy’s job as well as him?
Hopefully, that stays in the past.
Purdy has been spinning it lately, throwing for 16 touchdowns with a 111.5 passer rating during the Niners’ six-game winning streak.
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He’s thrown three-plus TDs in three straight weeks, and is 6-2 against this line on the season. That includes a two-touchdown performance against the Seahawks in Week 1.
Seattle’s pass defence is elite, but so is Purdy. I trust him to perform with the top seed on the line.
Kittle anytime TD (+155): This is a logical addition after backing Purdy to throw multiple TDs.
Kittle is returning to action after missing last week’s game, and that should make a big difference in San Francisco’s red zone offence.
The star tight end was on fire before getting hurt, logging 15 catches for 203 yards and two TDs in Weeks 15 and 16.
He scored against the Seahawks earlier this year and has caught 28 TDs in 44 regular-season games with Purdy in his career, per Stat Muse.
Top Seahawks prop bet
Barner 30+ receiving yards (-200): Stopping Jaxon Smith-Njigba should be priority No. 1, 2 and 3 for the 49ers’ defence.
That’s easier said than done, and I still think the wideout should eat. But Barner, in my opinion, will be the next man up when the Niners are double and triple-covering JSN.
Barner accounts for 15.1% of his team’s targets, which ranks in the 81st percentile among all tight ends, per RotoWire.
And opposing QBs have a 98.2 passer rating when targeting San Fran’s linebackers (who typically cover tight ends). That ranks in the sixth percentile.
Barner has reached this milestone in four of his last seven games, landing on exactly 27 yards twice.
Seahawks vs. 49ers predictions made at 12 p.m. ET on Jan. 3, 2026.