March Madness has long been the stage where underdogs rise, especially by capturing the hearts of fans with their improbable runs and giant-slaying feats.
Yet, the 2025 NCAA Men’s Basketball Tournament has unfolded differently, with the Sweet 16 dominated by power conference teams. Despite the absence of traditional Cinderella stories, a few lower-seeded teams have defied expectations to make their mark. Let’s explore the surprise teams of this year’s tournament.

Meet the Sweet 16’s Biggest Surprise Teams
No. 10 Seed Arkansas Razorbacks
The Arkansas Razorbacks have emerged as one of the tournament’s most compelling stories. Under the guidance of veteran coach John Calipari, the Razorbacks overcame a challenging regular season to peak at the right moment.
Their standout performance came in the Round of 32, where they upset No. 2 seed St. John’s with a thrilling 75-66 victory. This win showcased their resilience and strategic prowess, propelling them into the team’s third Sweet 16 appearance in five years.
No. 6 Seed Ole Miss Rebels
The Ole Miss Rebels, a No. 6 seed, have defied expectations and made significant noise in the tournament. Their most notable achievement was a commanding 91-78 upset over No. 3 seed Iowa State in the Round of 32.
This victory highlighted their offensive firepower and ability to perform under pressure, earning them a well-deserved spot in the Sweet 16, the team’s second-ever appearance (2001).
No. 6 Seed BYU Cougars
The BYU Cougars, another No. 6 seed, have made waves with their tenacity and skill. Their journey to the Sweet 16 included a thrilling 91-89 victory over No. 3 Wisconsin, a game that tested their resilience and showcased their offensive capabilities.
This win advanced them to the second weekend of March Madness for the first time since 2011.
No. 5 Seed Michigan Wolverines
The Michigan Wolverines, seeded fifth, have proven their mettle in this year’s tournament. Their journey to the Sweet 16 included overcoming formidable opponents and demonstrating a balanced approach on both ends of the court.
After taking down No. 12 seed UC San Diego, a team many expected to upset the Wolverines, Michigan took down No. 4 seed Texas A&M. Now, they’ll face the ultimate test—a date with No. 1 seed Auburn.
The Changing Landscape of March Madness
The 2025 tournament’s Sweet 16 is notably devoid of mid-major teams, a departure from the traditional Cinderella narratives that have defined past tournaments. This shift can be attributed to several factors.
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- Conference Realignment: Power conference expansion has absorbed several programs that were previously considered mid-majors, altering the competitive balance.
- NIL Impact: The advent of Name, Image, and Likeness deals has provided power conference programs with additional recruiting leverage, enabling them to attract and retain top talent more effectively.
- Transfer Portal Dynamics: The increased use of the transfer portal has allowed power conference teams to bolster their rosters with experienced players, widening the talent gap between them and mid-major programs.
As the tournament progresses, these teams will continue to challenge higher-seeded opponents, embodying the unpredictable and exhilarating spirit of March Madness.
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