Super Bowl Odds Tightening: Opening NFL Spreads for Week 15 Betting

The Denver Broncos can clinch first place in the AFC West with a straight-up win when they take on the San Diego Chargers on Sunday as early four-point road favorites in Week 15 NFL betting.

The 10-3 Broncos are 8-2 straight up in their last 10 games but have disappointed bettors with just two against-the-spread wins in their last six outings. Denver has alternated between wins and losses in six road contests this season, posting a 29-16 win at Kansas City in its last game away from Mile High, winning outright as a one-point road underdog.

The 8-5 Chargers are coming off a 23-14 loss to New England last weekend, ending a three-game SU win streak that returned them to the thick of the AFC Wild Card race. However, San Diego has also failed to reward bettors, going 1-7 ATS in its last eight games after posting five straight ATS wins.

The Chargers are a strong 8-2 SU in their last 10 games at home but have struggled against their division rivals, going 1-4 SU and ATS in the Broncos' last five visits.

The AFC places five of the top six teams in the latest Super Bowl futures update, and Denver (9-2) sits tightly behind New England at 7-2 and the Packers at 13-4.

Top spot in the NFC East will be on the line this weekend when the Philadelphia Eagles play host to the Dallas Cowboys as early 3.5-point betting favorites. Both teams enter Week 15 with 9-4 records, deadlocked atop the division, but Philly holds the edge as a result of its 33-10 win in Dallas on Thanksgiving Day.

The 7-6 San Francisco 49ers travel to Seattle to take on the Seahawks as heavy 10-point underdogs. San Francisco is currently enduring a two-game SU losing streak, so it desperately needs a win in Sunday afternoon's game at CenturyLink Field to keep its dwindling playoff hopes alive.

The 49ers are a dismal 4-8 ATS in their last 12 games, according to the Odds Shark NFL Database, while the Seahawks are 6-1 SU in their last seven games overall and 7-0 ATS in their last seven games against San Francisco.

In other Week 15 NFL betting action, the 8-5 Baltimore Ravens are heavy 14-point favorites against the 2-11 Jacksonville Jaguars, the Indianapolis Colts are favored by seven over the Houston Texans, and the 5-8 New Orleans Saints visit the 5-8 Chicago Bears on Monday night as slim three-point favorites.