Free NFL Betting Odds & Picks for the San Francisco 49ers vs. Seattle Seahawks week 15 matchup. The Seahawks are even with the 49ers. The over/under is 39.5. Dave reminds us that the Seahawks and 49ers are almost identical teams; both feature great rushing attacks combined with very efficient play-action quarterbacks that can extend plays. Golden Tate will be huge in this game as he is Seattle’s deep threat.