The Seahawks have allowed two passers to exceed 300 yards all season.

Peyton Manning, meanwhile, has thrown for more than 300 yards in 13-of-18 combined regular-season and postseason starts.

What we have here is a compelling matchup — and the ingredients for the sort of proposition bet Nevada sports books love to post this time of year.

In numbers released Friday, oddsmaker William Hill U.S. set Manning’s Super Bowl yardage at 323.5. Bettors can either take Manning to throw for more or less than the posted yardage.

Back on September 29, Texans quarterback Matt Schaub threw for 355 yards in a wild 23-20 overtime loss to Seattle. That’s the high-water mark for passing yards against the Seahawks this season. Only one other quarterback — the Saints’ Drew Brees — has exceeded 300 gross passing yards against Seattle.

Manning, for the record, has averaged 339.3 yards in his starts this season.