Receiver Eric Saubert made the decisive two-point conversion for Seattle.
Seattle engineered a remarkable fightback to overcome the Los Angeles Rams in extra time, securing their spot in the postseason.
Overcoming a sixteen-point hole in the fourth quarter, the Seahawks emerged victorious by a single point at home, registering their fifth straight win.
While the Los Angeles had already secured a post-season berth earlier on Sunday, the Seahawks booked their return to the play-offs after a two-year absence.
With this outcome, the Seattle have taken over their division's race with a 12-3 record, supplanting the Rams, who dropped to the number five playoff position with an 11-4 record.
Signal-caller Darnold threw two interceptions but regrouped to deliver two touchdown passes, culminating in the tying TD to wideout Smith-Njigba in the extra period.
The Rams held a six-point advantage at half-time before Walker broke free for a long touchdown run for the home side.
Rams defensive back Josh Wallace then took back Darnold's first interception for 56 yards, leading to a short score by Corum on the next play.
In the fourth quarter, a touchdown from Stafford to Puka Nacua extended the advantage to sixteen points, but Shaheed provided Seattle's comeback with a 58-yard punt return.
Darnold then connected with AJ Barner in the endzone, and a successful two-point play forced the game into an extra period.
Although Puka Nacua raced in for his another TD in OT, Jaxon Smith-Njigba responded in kind to setup the game-winning conversion.
A seasoned journalist with over 15 years of experience covering global affairs and social issues, dedicated to uncovering truth through rigorous research.