Through Week 4 of the 17-game 2025 NFL season, only the Philadelphia Eagles and Buffalo Bills remain unbeaten at 4-0 after Sunday’s results.
The NFL calendar turned a corner in Week 4 and a clear separation emerged at the top. The defending Super Bowl champions kept rolling, while Buffalo continued to answer questions with grit. Both clubs now stand alone as the league’s last perfect teams, and both wore the pressure of expectation like armor.
Philadelphia delivered a statement win on Sunday, handing the Tampa Bay Buccaneers their first loss. The Eagles reached four wins faster than anyone else this season. They turned a roster full of stars into a well-oiled machine and leaned on consistency in all three phases to close out the contest.
Jalen Hurts again found ways to steer an offense that features a potent mix of playmakers and balanced attacks. Hurts has shown poise in crunch moments, and his leadership surfaced once more when the game tightened. The chemistry he’s cultivating keeps the Eagles dangerous on every drive.
Buffalo matched Philly’s march to perfection by narrowly holding off the New Orleans Saints. The Bills have threaded a careful line between explosive plays and disciplined execution. They answered late-game pressure and limited mistakes when it mattered, a hallmark of teams that sustain winning runs.
The 4-0 starts carry weight in a 17-game season. You cannot win a title without building a foundation early, and these two teams have set themselves up with cushion and confidence. Conversely, many clubs that started with high hopes saw their momentum stall, underscoring how thin the margin for error already is.
Defenses played a decisive role across the slate. Both Philadelphia and Buffalo relied on timely stops and turnover avoidance to tilt the balance. Those small margins add up over a season and often separate the playoff-bound from the pretenders.
Looking ahead, neither schedule shapes up as a cakewalk. Both franchises will face tougher matchups that will probe depth and coaching adjustments. Still, momentum matters in this league. A 4-0 start buys patience and a chance to navigate injuries and slumps without panic.
Coaching has also earned headlines. Play-calling and in-game adjustments have stood out for both clubs. Coaches who adapt quickly win close games, and through four weeks both teams have shown an ability to pivot when opponents change tactics.
Ultimately, the NFL remains delightfully unpredictable. Two teams remain perfect, but the field sits ready to pounce at the first sign of weakness. The season is still young, yet Sunday’s results clarified who looks most prepared to handle the long grind ahead. Expect every matchup from here on to carry added urgency as contenders fight to stay in the unbeaten conversation.