5 Biggest NFL Games That Could Decide the 2025 Season

Buffalo and Philadelphia sit at 4-0 heading into Week 5. Everyone’s talking about them, but I’m watching what happens in November when these five games expose who’s real and who’s pretending.

1. Detroit Lions at Kansas City Chiefs (Week 6, October 12)

This is where Kansas City’s season turns around or completely falls apart. Detroit’s at 3-1 after dismantling Baltimore on Monday night. Kansas City limped to 2-2 before barely beating that same Ravens team.

Key numbers heading in:

● Detroit: 34.3 PPG (NFC’s best), Amon-Ra St. Brown on pace for 17 TDs

● Kansas City: 2-2 record, defense allowing just 19 PPG

● Betting line: Opened pick’em, now Chiefs minus 2.5 at Prime Sportsbook

Here’s my take: Mahomes is playing scared for the first time in his career. The Lions held Lamar Jackson to zero rushing touchdowns on Monday night. Dan Campbell’s aggressive fourth down calls get tested in a hostile Arrowhead Stadium environment where the Chiefs rarely lose. If Kansas City loses this, they’re fighting for a wildcard spot.

2. Kansas City Chiefs at Buffalo Bills (Week 9, November 2)

The AFC Championship rematch everyone circled. Josh Allen leads the NFL’s top offense at 33.3 points per game through four weeks. Kansas City beat Buffalo in last year’s title game but that feels like ancient history now.

What’s at stake:

● Buffalo’s running game ranks first in the league

● Kansas City’s defense has held three straight opponents under 21 points

● Allen is 0-3 against Mahomes in playoff games dating back to 2020

I’m calling it now: Allen finally gets his win over Mahomes in this one. The Bills are tired of being the bridesmaid.

3. Philadelphia Eagles at Green Bay Packers (Week 10, November 10)

The defending champs travel to Lambeau on Monday night, and I don’t think they will escape with a win. Philadelphia enters at 4-0 with Jalen Hurts averaging 217 passing yards per game. The Eagles keep finding ways to win despite inconsistent offensive performances.

Green Bay sits at 2-1-1 after tying Dallas in a wild 40-40 shootout. Jordan Love’s health becomes critical heading into this showcase. I break down how Philadelphia’s run game matches up against Green Bay’s front seven in our NFL Draft Diamonds game previews. The Eagles haven’t faced a real pass rush yet, and Lambeau in November changes everything.

4. Detroit Lions at Philadelphia Eagles (Week 11, November 16)

Sunday Night Football delivers the NFC’s best collision, and this is my pick for game of the year. Two likely 7-2 teams battle with the conference’s top seed hanging in the balance. Jared Goff faces the team that gave up on him, and he’ll have something to prove.

Saquon Barkley leads the Eagles with 459 rushing yards, including a 237 yard explosion against Green Bay. The official NFL standings tell a clear story by mid November about playoff positioning.

5. Philadelphia Eagles at Buffalo Bills (Week 17, December 28)

If both teams run the table, this becomes the most hyped regular season game in years. Two 15-0 teams have never met this late in a season. But here’s the thing: I don’t think either team makes it to December undefeated.

Josh Allen enters as the MVP favorite. The winner locks up the number one seed and home field advantage throughout the playoffs. This game matters more for Buffalo than Philadelphia because the Bills desperately need home field after losing three straight road playoff games to Kansas City.

The Games That Matter

Championship windows don’t stay open forever. These games separate contenders from pretenders as teams jockey for playoff positioning starting October 12th.

Detroit needs to prove their Monday night win over Baltimore wasn’t a fluke. Kansas City must show last year’s Super Bowl loss was an aberration. Buffalo and Philadelphia control their own destiny as the only undefeated teams after four weeks.

I’ve seen enough football to know undefeated doesn’t last. The team that survives these five games walks away with the Lombardi Trophy.