For the first time since 1992, Friday's opening slate of games was an absolute chalk-fest. Number one seeds cruised, and nearly two dozen consecutive favorites survived straight up to open the tournament. But the comfort of predictability was violently shattered over the weekend. A slew of massive Saturday March Madness betting upsets has upended the college basketball world, completely rewriting the 2026 NCAA Tournament odds and leaving oddsmakers scrambling.

The Perfect Bracket Tracker: Only Four Survive

The sheer statistical improbability of picking 63 consecutive basketball games correctly is often cited as 1 in 9.2 quintillion. Yet, hope springs eternal every March. Entering Saturday's Round of 32 action, 224 perfect entries remained out of the estimated 36 million submitted across major online platforms like ESPN, Yahoo, and CBS.

Following Sean Miller's No. 11 Texas Longhorns securing a grit-and-grind 74-68 victory over Mark Few's No. 3 Gonzaga Bulldogs—spearheaded by a ferocious second-half comeback—that perfect bracket number plummeted to 27,. Shortly after, No. 4 Nebraska's nail-biting 74-72 win over No. 5 Vanderbilt served as the final blow,. According to the official NCAA perfect bracket tracker, exactly four unblemished brackets remain in existence heading into Sunday, March 22.

  • Two entries on the Men's Bracket Challenge Game ("Cody underdog" and "megs4525875")
  • Two entries on ESPN ("christienter" and "Mini-mi-2448's Picks 24")

Those who submitted brackets through prediction markets like Kalshi were vying for a massive $1 billion payout, a life-changing offer that now rests entirely on the shoulders of these four anonymous users.

College Basketball Public Betting Trends Flip to Underdogs

Sportsbooks are reporting record handle for the opening weekend, but the liability has violently shifted over the past 48 hours. Friday was a public bettor's paradise as favorites easily covered the numbers. However, Saturday's chaos triggered a sharp correction. Current college basketball public betting trends show a massive surge in underdog money ahead of today's final Sweet 16 qualifying matchups.

Bettors are heavily backing the points, anticipating that Saturday's volatility will bleed into Sunday. Retail and mobile sportsbooks alike are seeing a flood of tickets on lower seeds. This reactionary influx of underdog cash is already heavily influencing early Sweet 16 betting lines for next week's regional semifinals. Bookmakers are being forced to adjust their opening numbers to mitigate liability, shaving half-points off favorites to coax money back to the other side.

St. John's vs Kansas Picks: The Favored Underdog

The most fascinating dynamic of the Sunday slate happens in San Diego, where the fifth-seeded St. John's Red Storm face the fourth-seeded Kansas Jayhawks at 5:15 p.m. ET on CBS. Despite the lower seed and playing on the West Coast, Rick Pitino's squad actually opened as a 3.5-point favorite. The Red Storm are riding a massive wave of momentum after torching Northern Iowa 79-53, while Kansas struggled down the stretch in Big 12 play before outlasting California Baptist.

When finalizing your St. John's vs Kansas picks, consider the stylistic mismatch. St. John's big man Zuby Ejiofor has been dominant in the paint, posting a monster 14-point, 11-rebound performance with four blocks in the opening round. Meanwhile, Kansas will counter with Darryn Peterson, who dropped 28 points behind four three-pointers on Friday. The public is laying the points with the Johnnies, expecting their aggressive rebounding and paint presence to punch a ticket to face No. 1 Duke in the Sweet 16.

Florida Gators Championship Futures Hold Strong

As the bracket clears out, sharp money is taking a hard look at the defending national champions. The Florida Gators championship futures remain one of the most popular tickets at betting windows. Despite a few regular-season hiccups and an early exit in the SEC Tournament semifinals, Todd Golden's squad secured the No. 1 seed in the South Region and currently sits around +700 to repeat as title winners,.

Winning back-to-back tournaments is a rare feat, last accomplished by UConn in 2024, and by the Gators themselves back in 2006 and 2007. With massive rebounding advantages courtesy of SEC Defensive Player of the Year Rueben Chinyelu—who averages 11.5 boards per game—Florida possesses the raw physical traits required for another deep run in Indianapolis.

As the weekend concludes and the final teams pack their bags for the regional finals, the updated 2026 NCAA Tournament odds will undoubtedly reflect a landscape drastically altered by Saturday's underdog uprising. Whether another favorite falls today or the chalk returns, this tournament has already delivered the signature madness bettors crave.