March Madness Betting Guide 2026: Brackets, Upsets & Best Bets

March Madness generates more sports betting handle than any other event except the Super Bowl. The combination of 67 games over three weeks, massive public interest, and genuine unpredictability creates extraordinary betting opportunities.

Bracket vs. Spread Betting

Bracket pools are fun but offer terrible expected value — the field is too large and luck dominates. Spread betting on individual games is where serious bettors focus.

The 5-12 Seed Upset

The 12-seed over 5-seed upset happens roughly 35% of the time. The public consistently undervalues 12-seeds because they're "underdogs." Look for 12-seeds with strong defensive metrics (top 40 KenPom defensive efficiency) and experience.

Fade the Cinderella After the First Weekend

Teams that make surprise runs to the Sweet 16 often see their lines inflated by public excitement. Fade the Cinderella story in the second weekend — the talent gap catches up.

Our 2026 Tournament Picks

Duke remains our favorite to cut down the nets. Cooper Flagg is the best player in college basketball and the Blue Devils' defense has been historically good. At +350 to win the tournament, there's still value.

For upsets in the first round, we like: Drake over Tennessee (12 over 5), Grand Canyon over Marquette (13 over 4), and Vermont over Baylor (11 over 6).