Market WatchTo nobody's surprise, this game opened at -3 and it has stayed there for most of the week. In the advanced line, it was also -3 so not much has changed. Most people grant 2.5/3 points to the home team for home field advantage, but the Seahawks can easily be given four points based on the 12th man. On this logic, it means that Vegas have the 49ers slightly higher in their power rankings.
It's too early to say which team is better, but a legitimate case could be made for either club. 65 percent of the bets are coming in on the 49ers.
On a side note, the "12th man" will attempt to beat the Guinness World Record for crowd noise. The record sits at 131.76 decibels. Many sportsbooks are offering this as a prop bet. "No" is -200, while "yes" is +150.
Essentially, this game should be won in the trenches. That's usually the case for most games, but it's even more paramount in this matchup because neither team will give up a lot. This is one area where the 12th man could be a decisive factor. Ultimately, I'm going to pass on this game, but the only side I would look at are the Seahawks. Fading them at home is never a good idea - no matter who they are playing.