How many upsets should I pick in my March Madness bracket?

In a typical tournament, 8-10 first-round upsets occur (seeds 9 or higher winning). Most bracket contestants pick too many or too few. The data suggests picking 3-5 upsets in the Round of 64 and being more conservative in later rounds, where higher seeds advance at higher rates.

What is the best strategy for filling out a March Madness bracket?

The best bracket strategy balances chalk (picking favorites) in later rounds with selective upsets in the first two rounds. Focus on identifying 2-3 genuine Cinderella candidates rather than spraying upsets across the bracket. Later-round picks are worth more points, so protect your Final Four and championship selections.

Should I pick a 1-seed to win the championship?

Historically, 1-seeds win the championship about 60% of the time. A 1 or 2 seed wins roughly 80% of the time. Unless you have strong reason to believe otherwise, picking a top-2 seed as your champion is statistically the safest strategy.

How to Fill Out Your March Madness Bracket: Data-Driven Tips for 2026

Filling out a bracket is easy. Filling out a good bracket is hard. With 9.2 quintillion possible brackets, nobody's ever had a perfect one. But you can give yourself a significant edge by avoiding the most common mistakes and letting the data guide your picks.

Here's what actually works.

The Most Common Bracket Mistakes

Mistake 1: Too Many Upsets

The average bracket contestant picks too many upsets. Yes, 12-seeds beat 5-seeds about 35% of the time — but that means the 5-seed wins 65% of the time. Picking every 12-over-5 upset means you'll be wrong on most of them.

The fix: be selective. Pick 3-5 first-round upsets based on genuine matchup analysis, not gut feelings about team names.

Mistake 2: Not Enough Upsets

The opposite problem. Going full chalk (all favorites) in the first round guarantees you'll miss the upsets that do happen. And some will happen.

The sweet spot is identifying where the data disagrees with the seed line. When our model's efficiency ratings rank a 10-seed significantly higher than the 7-seed they're facing, that's a data-driven upset pick — not a guess.

Mistake 3: Ignoring Later Rounds

The ESPN scoring system awards 10 points for a correct Round of 64 pick, but 320 points for correctly picking the champion. Your Final Four and championship picks are worth more than your entire first round combined.

This means your champion pick matters far more than any individual upset call. Protect your later-round picks.

What the Data Says About Seed Performance

Historical NCAA tournament data reveals clear patterns:

Round of 64: 1-seeds win 99.4% of the time. 2-seeds win 94%. The drop-off starts at 5-seeds (65%) and 6-seeds (63%). If you're picking an upset, the 5-12 and 6-11 matchups are where it's most likely to happen.

Sweet 16 and Beyond: By the Sweet 16, 1-through-4 seeds dominate. About 85% of Elite 8 teams are 1-4 seeds. Your region winners should almost always be top-4 seeds.

Championship: Over the last 20 years, 1 and 2 seeds have won the championship about 80% of the time. Going with a 1-seed as your champion is the statistically safest pick.

When to Pick the Upset vs. Chalk

Pick the upset when:

The lower seed has significantly better efficiency metrics than their seed suggests
There's a major tempo mismatch favoring the lower seed (slow-paced vs. fast-paced)
The higher seed has a recent losing streak or key injury
Our power rankings rank the lower seed much higher than their seed

Go chalk when:

The higher seed has elite defensive efficiency
The matchup is 1-vs-16, 2-vs-15, or 3-vs-14 (upset rates under 15%)
You're picking later-round games where the point values are higher
You don't have a specific, data-backed reason for the upset

Or Let the AI Do It

Not confident in your bracket instincts? Our bracket challenge lets you compete directly against our AI-generated bracket. The AI analyzes advanced efficiency metrics, tempo matchups, and historical patterns for every single game.

Fill out your bracket and see if you can beat the model. The picker goes live within one hour of the Selection Sunday announcement on March 15.

Get daily picks throughout the tournament, and check our verified track record to see how the model has performed across 700+ tracked picks.