The Seattle Seahawks and New England Patriots meet in the 2026 Big Game on Sunday, and the matchup has quickly become one of the most wagered spots of the year. With spread bets, totals, props and same-game parlays piling up across the market, the betting conversation is being shaped by two things: a rising Seattle price and a defensive game script that’s pushing many bettors toward the Under.

One of the biggest points of attention is the latest DraftKings new-customer offer: new users can receive $300 in bonus bets if their first $5 wager wins. The promotion has been circulating heavily heading into kickoff, particularly with Seattle drawing steady support. If you’re reviewing the official terms, you can find them on DraftKings’ promotions page here.

On the odds board, Seattle has strengthened into a clear moneyline favorite and is listed at -239 in the latest market snapshot. That move has been building throughout the week as bettors back a Seahawks team that finished the season with momentum and continued it into the postseason. The spread being discussed most often is Seattle -4.5, which has become a popular anchor leg for same-game parlays.

The strongest angle in many projections, however, is the total. A popular model-based position is Under 45.5 points, largely because this matchup features the top two scoring defenses in the NFL. Seattle leads the league at 17.1 points allowed per game, while New England is right behind at 17.3. Combined, that’s 34.4 points per game allowed, a number that supports the idea of fewer clean possessions and longer, grind-it-out drives.

New England’s postseason defensive form has been especially sharp, allowing only two total touchdowns and keeping each playoff opponent under 16 points. Coaching is also part of the low-scoring case: the Patriots are led by Mike Vrabel, a former linebacker known for defensive structure, while Seattle is coached by Mike Macdonald, one of the league’s most respected defensive minds. In 10,000-game simulation coverage cited alongside this matchup, the Under is projected to cash in 59% of runs.

If bettors are building a three-leg same-game parlay, the most repeated combination is Seahawks -4.5, Under 45.5, and Cooper Kupp over 34.5 receiving yards. The Kupp prop is tied to a volume story: he has carried a 22% target share in the postseason and has already cleared the number in both playoff games. If Seattle quarterback Sam Darnold lands around 30 pass attempts, that workload translates to roughly six to seven targets, leaving a realistic path to 35-plus yards without requiring a huge splash play.

Put together, that three-leg parlay has been quoted around +589 odds, meaning a $100 stake could return $589 if all legs hit. As always, odds can move quickly as kickoff approaches, especially with public money clustering on the favorite and the total.

Responsible gambling note: betting should be for entertainment, and it’s worth setting limits before placing any wager—especially on high-volume events like the Big Game.