March Madness is in full swing, and for a few weeks, it will dominate the sports world.
Unsurprisingly, almost no one has a perfect bracket anymore.
As I write the first draft of this on Saturday night, reports indicate that only 26 perfect brackets remain. How does that happen so fast? The NCAA Tournament reminds odds makers to expect the unexpected. For example, top-seed Duke almost lost to bottom-seeded Siena to open March Madness. Meanwhile, High Point beat Wisconsin and Nebraska made a miracle happen, breaking their 0-8 March Madness streak. Of course, that’s only the tip of the iceberg.
Before 24/7 sports channels and social media, people watched the weekly show “The Wide World of Sports.” Its opening theme promised “the thrill of victory and the agony of defeat!” and “The human drama of athletic competition.” That defines March Madness. So do the confounding variables, like health (mind, body, and spirit), matchup, coaching, officiating, and luck.
The Odds Are Stacked Against You
The holy grail is mighty elusive in March Madness (as in most things). For example, the odds of getting the perfect bracket are 1 in 9,223,372,036,854,775,808 (that is 1 in 9.223 quintillion if that was too many zeros to count). If you want better odds, then you can have a 1 in 2.4 trillion chance based on a Duke Mathematician’s formula that takes into account ranks. It’s easier to win back-to-back lotteries than to pick a perfect bracket.
Even knowing the odds, I bet you felt pretty good when you filled out your bracket.
via Duke University
Here are some more crazy March Madness Stats:
- Companies expect $4 Billion of corporate losses due to employees tracking games
- The highest-paid NCAA basketball coach, Kansas’s Bill Self, makes a salary of $8.8 Million
- In 2018, it was estimated that March Madness generated $10 Billion in gambling (twice as much as the Super Bowl)
Feeding the Madness
“Not only is there more to life than basketball, there’s a lot more to basketball than basketball.” – Phil Jackson
In 2017, I highlighted three people who were (semi) successful at predicting March Madness: a 13-year-old who used a mix of guesswork and preferences, a 47-year-old English woman who used algorithms and data science (despite not knowing the game), and a 70-year-old bookie who had his finger on the pulse of the betting world. None of them had the same success even a year later.
Finding an edge is hard – Maintaining an edge is even harder.
Human nature tempts us to overweight recent performance, fall in love with narratives, and underestimate how little of the future we can actually see.
That’s not to say there aren’t edges to be found.
Bracket-choosing mimics the way investors pick trades or allocate assets. Some people use gut feelings, some base their decisions on current and historical performance, and some use predictive models. You’ve got different inputs, weights, and miscellaneous factors influencing your decision. That makes you feel powerful. But knowing the history, their ranks, etc., can help make an educated guess, and they can also lead you astray.
The allure of March Madness is the same as the allure of gambling or trading. As sports fans, it’s easy to believe we know something the casual observer doesn’t. We want the bragging rights for the sleeper pick that goes deeper than expected, our alma mater’s unlikely run, and the big upset we called before anyone else.
You’d think an NCAA analyst might have a better shot at a perfect bracket than your grandma or musical-loving co-worker.
In reality, several of the highest-ranked brackets every year are guesses.
The commonality in all decisions is that we are biased. Bias is inherent to the process because there isn’t a clear-cut answer. We don’t know who will win or what makes a perfect prediction.
Think about it from a market efficiency standpoint. People make decisions based on many factors — sometimes irrational ones — which can create inefficiencies and complexities. It can be hard to find those inefficiencies and capitalize on them, but they’re there to be found.
In trading, AI and advanced math help remove biases and identify inefficiencies humans miss.
Can Machine Learning Help?
“The greater the uncertainty, the bigger the gap between what you can measure and what matters, the more you should watch out for overfitting – that is, the more you should prefer simplicity” – Tom Griffiths

The data is there. Over 100,000 NCAA regular-season games were played over the last 25+ years, and we generally have plenty of statistics about the teams for each season. There are plenty of questions to be asked about that data that may add an extra edge.
In markets, that’s the backtest that looks perfect on paper and fails in live trading; in March Madness, it’s the model that nails last year’s pattern and misses this year’s upset.
That said, people have tried before with mediocre success. It’s hard to overcome the intangibles of sports — hustle, the crowd, momentum — and it’s hard to overcome the odds of 1 in 9.2 quintillion.
Two lessons can be learned from this:
- People aren’t as good at prediction as they predict they are.
- Machine Learning isn’t a one-size-fits-all answer to all your problems.
That matters if you’re picking brackets, trading portfolios, or making strategic business bets.
Something to think about.












