The 17-game NFL regular season imposes steep barriers to an undefeated campaign, with no team achieving perfection since the 2007 Patriots. Trader consensus at 95% on “No” reflects sustained league parity, elevated injury risks across an extended schedule, and the difficulty of maintaining dominance through divisional rivalries and short rest weeks. Early 2026 results already highlight competitive balance, as multiple contenders have shown vulnerabilities even in initial matchups. Historical patterns confirm that elite squads routinely absorb at least one setback from travel demands, opponent surges, or roster attrition before reaching 17 wins.