NFL's Last Undefeated: Odds for 3-0 Teams

In the 2026 NFL season, five teams maintained their undefeated status after three weeks of play. As the league enters Week 4, questions arise about how long these teams can stay perfect, with at least one team poised to lose its chance at a perfect season this weekend when the Kansas City Chiefs face the Las Vegas Raiders. The other undefeated teams, the Buffalo Bills, Minnesota Vikings, and San Francisco 49ers, will also play this weekend, each favored in their matchups.

Las Vegas Raiders: Week 4 vs. Chiefs
The Raiders, who have a surprising 3-0 record, face the Chiefs after defeating the Miami Dolphins, Los Angeles Chargers, and New Orleans Saints — opponents who collectively hold a 1-5 record against other teams. Despite leading the NFL in takeaways with nine, it will be challenging for the Raiders to maintain this streak against the Chiefs, who have committed only two turnovers this season. Both teams have scored the same amount of points so far, but Kansas City has outgained Las Vegas significantly, averaging 105 more yards per game. The Chiefs are predicted to win by 4.5 points. While the Raiders’ offense received a boost from the return of tight end Brock Bowers, they must beef up their defense against tight ends, as demonstrated by the Saints' success in that area.

San Francisco 49ers: Week 4 vs. Broncos
The 49ers have enjoyed a robust start with quarterback Brock Purdy showcasing impressive stats, throwing nine touchdowns against just one interception. Their offense leads the league in several categories, including yards per play and conversion rates. However, the Broncos’ defense, ranked second last season, currently sits at 29th, raising the stakes for both teams. If the 49ers manage a win, they will prepare for a difficult matchup in Seattle the following week, after suffering a heavy defeat there last January.

Buffalo Bills: Week 5 @ Rams
The Bills secured a narrow victory in Week 3 but face a challenge against the New England Patriots at their new stadium, where they hope to avoid their first loss. Despite ranking as the highest-scoring team, the Bills have defensive weaknesses. The Rams, having lost two of their first three games, appear competitive despite their scoring concerns. Their upcoming matchup is projected as a potential Super Bowl preview, considering the last meeting was a dramatic shootout.

Kansas City Chiefs: Week 7 @ Seahawks
With Patrick Mahomes back to form, the Chiefs are expected to win their upcoming games before facing a tough matchup against the Seahawks, who boast a solid defense and returning star Kenneth Walker. This will be a pivotal game as both teams seek to reinforce their playoff ambitions.

Minnesota Vikings: Week 8 @ Lions
Led by Kyler Murray, the Vikings are looking to maintain their undefeated status into a crucial division game against the Lions. Minnesota’s defense has performed notably well, alongside a lighter schedule in the weeks ahead, setting them up for sustained success as they prepare to face the Lions, who will be seeking revenge after being swept by Minnesota last year.