Every season, March Madness creates pandemonium, and the stats prove it. There have been dozens of early-round upsets by a double-digit seed since the modern 64-team bracket was introduced in 1985, including 57 wins by 12 seeds against 5 seeds, a success rate of about 35%. That matchup almost always has surprising results in the first weekend of the tournament.
Yet when bettors line up to bet on March Madness 2026, the same pattern appears again and again. Public money floods toward brand-name programs and high seeds — teams like Duke, Kentucky, Kansas, or Arizona that dominate headlines and TV coverage. Sportsbooks understand this tendency well. Lines often shift toward those teams because bookmakers know casual bettors will back them regardless of value.
That is not the case for sharp bettors.
In March Madness, it is not the top teams in the rankings that are awarded, but rather the teams that are peaking in March, and that can be outside of the top 5. Most of the time, value betting opportunities are for the teams ranked in the 10s, the disciplined mid-majors, and the gritty programs seeded in the 7-12 range.
The objective is to determine which favorites have a lot of betting activity and to tell when those teams are overpriced.
Why Public Money Inflates the Biggest Programs
Big Brands, Bigger Betting Volume
Every March, bettors flock to familiar logos.
The most attention is drawn to programs that have a long history of making the tournament and a national fanbase. Public betting is directed towards teams like Duke, Arizona, Michigan State, and Kansas because they are frequent preseason ranking and bracket projection favorites.
This impacts sportsbooks in a certain way. Because the public bets heavily on the favorites, the sportsbooks adjust the betting lines in favor of those teams. For example, a #1 seed might be betting listed at -8, when power ratings suggest -6 is actually correct.
The difference looks small, but it creates value in betting on the opposite side.
This is especially true in the first two rounds of the tournament. Casual bettors like to put parlays with a lot of favorites because they believe that the historically strong programs will win easily against the underperforming programs.
However, that simply is not true.
Since the tournament began in 1985, 10 seed teams have beaten 7 seed teams almost 39% of the time, meaning that mid-tier matchups are often at a 50-50 probability, regardless of the seeding.
Sportsbooks thrive on these types of situations because they know that bettors misjudge the situations.
Upset History Says the Market Overreacts
The NCAA Tournament isn’t just prone to upsets; it is designed for chaos every year.
An upset occurs when the winning team is five or more seeds lower than an opponent. Some tournaments can see double-digit upsets. The 2021 NCAA Tournament is the most extreme example; they recorded 14 upsets, the most upsets in a tournament in NCAA tournament history.
What makes upsets so common?
It comes down to seeding. The bracket downplays the true competitive nature of teams in each region. There are instances in almost every tournament where a three seed from a power five conference is only marginally better than a highly skilled and disciplined 14 seed mid-major.
Betters also consistently miss the mark when assessing these gaps.
Look deeper at historical outcomes:
- No. 12 seed teams historically win one-third of games against 5 seed teams.
- No. 11 seed teams claim victories against 6 seeds with one of the highest rates of upset wins in the bracket.
- No. 13 seed teams upset 4 seed teams every so often when the underdog has an experienced guard who can shoot the three-ball well.
The numbers show that favorites should not be completely dismissed, but show the blind support of top seeds, which the betting public does, can end up costing a lot.
Some bettors like constructing college basketball betting parlays that are bubble-heavy. That strategy is safe up until one of those lower-seeded underdogs hits a clutch three and destroys the whole ticket.
Practical Strategy: Where the Betting Value Actually Lives
In case you wish to wager against the public, there are more reliable chances in certain areas of the bracket.
1. Fade Overvalued No. 1 and No. 2 Seeds
Top seeds have a huge betting volume. Futures and spread bets, especially in the championship, become overvalued as the market assumes those teams will walk through the bracket.
Instead of backing them blindly, consider how much the following factors tilt the odds in your favor in the tournament:
- Turnover rate
- Half-court offensive efficiency
- Bench depth
- Defensive rebounding
Teams that dominate in the regular season may find it difficult to win against teams that are more physical in a single-elimination scenario.
2. Target teams ranked just outside the top 10
Teams just below the uppermost echelon in rankings often produce national title winners. These teams, with the most sophisticated analytics, get the least publicity.
Public wagering tends to fixate on the clear favorites. Thus, teams positioned between approximately 8 and 15 in national ranking metrics provide much more favorable lines and spreads.
3. Pay attention to 7–12 seed matchups
This range has been the most consistent producer of close first-round matchups.
- Almost 40% of the time, 10 seeds will outperform 7 seeds.
- 11 seeds are frequent offenders when it comes to beating 6 seeds.
When betting lines are pushed to the higher seeds, the underdog becomes a great value bet.
Looking Ahead: Which Teams Could Be Overhyped in 2026
Multiple major programs are involved in the 2026 tournament, which will likely result in a high betting interest.
Duke’s name came up again in the latest rankings, and with it comes yet another appearance in the spotlight as it continues to stretch its already long streak, reinforcing the listing value of the program during the betting process. Expected to profit in the betting market, most brackets place Arizona, Michigan State, and Florida for considerable tournament value.
The value alone will not signify a failing spread. With that in mind, value will likely be lost in the betting market.
The tightest margins likely stem from teams that have few expectations, disciplined defensive units, veteran lineups with experienced guards, or teams with elite three-point games that can shift tournament games in their favor.
March Madness seldom pays out to the most in-demand bet.
It most likely pays out to the best spread.
Expert Betting Insights for March Madness 2026
Track Public Betting Percentages
If a public favorite holds a majority of the wagers (70-80%), but the line hasn’t moved, the books possibly see value in the dog. That could mean there is value in betting the dog.
Prioritize Defensive Efficiency
Tournament settings make defense critical. Teams that manage to dominate on defense can control the tempo, and thus the scoring opportunities, ultimately outperforming their seed.
Watch Teams Peaking in Conference Tournaments.
Teams that have success in the conference tournament have a tendency to outperform expectations during the NCAA Tournament.
Avoid Blind Futures Bets on Top Seeds.
Championship futures placed on the most hyped teams typically hold little value. Rather than betting on a favorite ahead of time, wait to see how the bracket shapes up and then place bets on individual games.
Evaluate Coaching Experience
Coaches with a long history of tournament experience tend to outperform expectations because of their ability to react and adapt to changes in a game.
Pay Attention to Free-Throw Rate
Many notable upsets have come from underdogs that attack the paint consistently. In the final minutes of a close game, the ability to draw fouls and hit free throws can make a decisive difference.
Frequently Asked Questions
Q: Why do bettors tend to overestimate the value of top seeds in the March Madness Tournament?
A: Bettors are influenced by brand recognition. Established brand names in college basketball attract the attention of less experienced bettors. This attracts value in bets of higher-seeded teams, while betting on lower-seeded teams becomes a smarter option.
Q: Which seeds are the most likely to be upset?
A: First-round upsets have been recorded for many instances within the 10th – 12th seed range. 12 seeds have been recorded to win one of every three matches against 5 seeds.
Q: Are number 1 seeds placed bets to be safe in the first rounds?
A: They are likely to win and advance to the next round, but covering the spread does not guarantee a win. It becomes a lot harder for serious favorites to cover the spread.
Q: Are bets on individual games better than bets on a posited idea for the tournament?
A: Individual bets tend to provide better value over the stretch of the tournament. While betting on a posited idea does provide smaller potential winnings over the stretch of the tournament, it also carries a large risk.
Q: Are there better times in the tournament for betting as matches are coming closer to being played?
A: Taking bets early on can capture value, but as the matches come closer to the time at which they will be played, there will be a clearer movement of the lined public betting among other things.
Q: Should bets be placed on mid-major teams?
A: With many seasoned players who play with strong defense and excel in the guard position, mid-major teams outperform their expectations and seed ranking.
Q: How to Use Advanced Stats to Pick Winners on March Madness Betting Sites?
A: Focus on efficiency metrics like offensive and defensive efficiency, turnover rate, and rebounding percentage to evaluate team strength to pick winners on March Madness betting sites.
The Smart Bettor’s Edge in March 2026
March Madness remains one of the most unpredictable events in sports. Every bracket promises chaos, but the betting market still leans heavily toward recognizable teams and top seeds.
That’s where the opportunity exists.
Three lessons stand out heading into the tournament. First, public betting often inflates the odds of powerhouse programs. Second, historical results show mid-seed teams — especially seeds 7 through 12 — win far more often than casual bettors expect. Third, teams outside the top-ten spotlight frequently deliver the best betting value.
Approach the bracket with discipline. Focus on coaching, defensive metrics, and current form rather than rankings alone. When the crowd rushes toward the most recognizable teams, stepping the other direction can create long-term value.
That mindset can make a difference when you bet on March Madness 2026.
For bettors looking to capitalize on tournament opportunities, BetNow offers competitive odds, updated lines, and a wide range of NCAA betting markets. Explore the latest options and start building a strategy before the next upset reshapes the bracket.
Hilbert Mayer
Sports Writer
Hilbert Mayer is a professional sports writer, betting analyst, and content strategist with over 15 years of experience in the sports industry. Before focusing on sports betting analysis and handicapping, Hilbert worked as a sports writer for various news outlets, covering everything from game recaps to in-depth matchup features. Today, he specializes in MLB, NFL, March Madness, and UFC betting, combining his journalistic background with deep statistical expertise and real-world betting insights. His proven track record, sharp reads, and ability to break down complex matchups make him a trusted voice among both casual bettors and seasoned sharps.
Published on: March 16, 2026
Last updated: March 16, 2026