NFL Early Season Trends: Analyzing Historical Performance Through Week 4

As the NFL season completes its first month, the temptation to project final standings based on early paces is high. However, performance often regresses toward the mean, making it essential to evaluate teams based on their actual output through four games rather than extrapolating over a full 17-game schedule. By utilizing defense-adjusted value over average (DVOA) metrics—normalized to account for era-specific averages—we can gain a clearer picture of which teams are legitimate contenders and which are benefiting from early-season variance.

The San Francisco 49ers have emerged as the standout team of the opening month, currently holding the top spot in DVOA ratings with a performance level that ranks among the best since 1977. While their 4-0 record is clear, the efficiency of their passing game, led by quarterback Brock Purdy, has been historically significant. Despite facing a series of injuries to key personnel, including edge rusher Nick Bosa and several wide receivers, the 49ers have consistently outplayed their opponents, suggesting their dominance is rooted in superior execution rather than luck.

Conversely, the 0-4 starts for the Houston Texans and Tampa Bay Buccaneers mask a more competitive reality. Both teams rank near the NFL average in DVOA, suggesting their records are worse than their actual play. Houston has demonstrated a surprisingly effective offense, while Tampa Bay’s defense has remained solid despite the team's inability to secure close wins. With the expanded playoff format, both teams maintain a slim mathematical path to the postseason, though historical data shows that turning around an 0-4 start is exceptionally rare. Meanwhile, teams like the Cleveland Browns and New York Giants, who sit at 3-1, are viewed with skepticism by advanced metrics, which suggest their early-season losses may be more indicative of their true potential than their recent string of narrow victories.