Best Seahawks vs 49ers Same Game Parlay for Week 18

Rohit Ponnaiya breaks down his best Seahawks vs. 49ers same-game parlay, which features the Seattle stars quite prominently.

Rohit Ponnaiya - Betting Analyst at Covers.com
Rohit Ponnaiya • Betting Analyst
Jan 2, 2026 • 14:57 ET • 4 min read
 Dec 7, 2025; Atlanta, Georgia, USA; Seattle Seahawks running back Zach Charbonnet (26) runs the ball.
Photo By - Imagn Images. Dec 7, 2025; Atlanta, Georgia, USA; Seattle Seahawks running back Zach Charbonnet (26) runs the ball.

The Seattle Seahawks and the San Francisco 49ers clash in a pivotal Week 18 clash on Saturday night. The winner of this NFC West showdown will claim the No. 1 seed in the conference and a first-round bye. 

I'm expecting the victor to be Seattle, who will take advantage of a porous San Francisco defense.

See which factors go into my Seahawks vs. 49ers same-game parlay and NFL picks for January 3. 

Our best Seahawks vs 49ers SGP for Week 18

Both of these teams have explosive attacks, but the Seattle Seahawks have the far better defense. While Seattle is fourth in the league in defensive success rate, the San Francisco 49ers are just 30th. 

I'm expecting the Seahawks to win due to their superior defense, which is why I'm backing two of their best playmakers to have a big game versus a Niners defense that struggles against the run and pass.

No. 1 WR Jaxon Smith-Nijgiba leads the NFL with 1709 receiving yards while ranking fourth in receptions (113). JSN has logged at least eight catches in 10 of 16 contests, including the season opener against San Fran when he reeled in nine of 13 targets.

The 49ers are 24th in the league in defensive dropback EPA and  26th in receptions allowed to wide receivers. 

Meanwhile, Zach Charbonnet has emerged as Seattle's goal-line back and leads the team with 11 touchdowns. Since Week 4, Charbonnet has scored nine TDs on 24 carries inside the 10-yard line.

Seahawks vs 49ers SGP

  • Seahawks moneyline
  • Jaxon Smith-Njigba Over 7.5 receptions
  • Zach Charbonnet Anytime TD

Odds are correct at the time of publishing and are subject to change.
Not intended for use in MA.
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Rohit Ponnaiya
Betting Analyst

With a background playing soccer, rugby, and boxing, combined with a journalism degree, it's little surprise that Rohit gravitated towards the world of sports betting. He specializes in betting on UFC and college basketball, two sports where the eyeball test can tell you a lot more about matchups than analytics. Rohit has years of experience handicapping NFL and NBA games as well as niche betting markets such as politics. He's also the resident CFL expert and formerly hosted "The Chez and Ro Show" with former CFL star Davis Sanchez.

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