2025 March Madness: Ranking the 4 Best Defensive Teams in the NCAA Tournament
While offense is important in the early rounds, defense is what will win you a championship in the NCAA Tournament. Tera Roberts knows this, and curates her top four defenses in college basketball to get you ready for March Madness 2025.
Tera Roberts - March 19, 2025, 5:37 PM EDT
4 min2025 March Madness: Ranking the 4 Best Defensive Teams in the NCAA Tournament
Defense wins championships, and this year’s NCAA Tournament field features many strong defensive squads, but who are the truly elite defenses? Let’s talk about four of the best defensive teams in the nation and what makes them dominate as you fill out those March Madness brackets!
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NCAA Tournament Best Defensive Teams
1. St. John’s Red Storm
St. John’s relentless defense has surged under coach Rick Pitino. The Red Storm have transformed into one of the nation's top-tier defensive units and boast the top rank in KenPom adjusted defensive efficiency rankings. Pitino’s trademark pressure defense shines with St. John’s forcing 15.62 turnovers per game - 10th in the nation.
Kadary Richmond has played a major role in St. John’s success, leading the team in steals and recently named a Naismith Defensive Player of the Year Award semifinalist. The team’s commitment to contesting every shot shows in the stats. St. John’s is 17th in the nation in opponent’s field goal percentage, allowing just 40%. They’re also 13th in blocks and 17th in steals. The Red Storm’s tenacious defense has powered them to a Number 2 seed and could lead them to a national championship.
2. Houston Cougars
Houston’s defense under Kelvin Sampson is thriving and the Cougars have the second overall defensive efficiency rating in KenPom. That defense is a product of Sampson’s emphasis on toughness, discipline and all-out effort, with opponents scoring just 58.2 points per game - second in the nation - while shooting a miserable 38.27% from the field.
The Cougars are led defensively by forward Joseph Tugler, who was named a Naismith Defensive Player of the Year Award semifinalist and averaged 2.1 blocks per game this year. Every possession against the Cougars is a grind and their cohesiveness on defense often leaves opponents visibly frustrated, struggling to find any rhythm.
Which of these defensive powerhouses has the juice to go all the way to a title? The NCAA Championship odds the story
3. Tennessee Volunteers
Tennessee’s defense boasts not one but two Naismith Defensive Player of the Year Award semifinalists in senior guards Jahmai Mashack and Zakai Zeigler, making Tennessee perhaps the toughest, most experienced defensive unit in the tournament. Zeigler is on his third consecutive year as a finalist and the pair lead the team in steal, forming a terrifying wall in the backcourt.
Nationally, the Vols are 17th in blocks, 11th in points per game allowed to opponents 63.0 - wildly impressive considering the depth of the SEC - and second in opposing field goal percentage allowing just 38.2%. They also have the NCAA-leading three point percentage defense, a stat that should come in handy considering the path to the Final 4 would go through Houston, who has the nation’s fourth-best three point percentage.
4. Duke Blue Devils
Don’t let Duke’s stellar offense fool you – this Blue Devils squad can absolutely lock you down on defense. Duke is truly the most well-rounded squad in the tournament and their ability to produce on both ends of the court puts the Blue Devils in a position to control games at will. Duke allows just 61.9 points per game to opponents and 38.6% field goal percentage - both seventh in the nation.
Just like the aforementioned teams, Duke offers their own Naismith Defensive Player of the Year Award semifinalist in freshman phenom Cooper Flagg. It’s easier to list what Flagg hasn’t accomplished because he leads the team in legitimately every category - points, rebounds, assists, steals and blocks. Flagg suffered an ankle injury in the ACC tournament, but he’s expected to play in the opening round.
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