The Sweet 16 in the 2026 Men’s March Madness tournament was almost a little bitter as the favorites went 39-9 straight up (SU) in the first two rounds. No. 9 Iowa’s gritty performance saved us, delivering the shocking March Madness upset we needed over No. 1 Florida. Outside of Florida, we’ve got three No. 1s and all four No. 2s ready to mend all the broken brackets and wagers.
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Here are some Sweet 16 betting trends to get you prepped when things tip off again on March 26, along with snippets on upcoming matchups and March Madness odds.
- Favorites have ruled the ‘26 tournament: Not only have favorites gone 39-9 SU, but they also have the advantage against the spread (ATS) as they’ve gone 29-19 ATS. This is the fewest outright upsets since 2018 – tied for second fewest in the last 20 years.
- The top seeds dominate the Sweet 16: We’ve lacked upsets already, but it could get worse. Historically, 80-85% of the No. 1 seeds in the Sweet 16 win their games.
- Cinderella’s clock strikes 12: Most Cinderella squads – 10-15 seeds – stall at the Sweet 16. Only the No. 11 Texas Longhorns currently remain, who don’t technically match the “mid-major” Cinderella profile.
- Sweet 16 odds are sharper odds: by this round, books have fewer weak teams to price, so the easy early-round spread edges tend to disappear. That’s one reason why many Sweet 16 lines sit in shorter ranges and why favorites can win outright without always being automatic ATS covers.
No. 11 Texas vs. No. 2 Purdue
- March 26, 7:30 p.m. ET on CBS
- Purdue: -7.5
Texas is the lone double-digit seed left, but Purdue is the -7.5 favorite, thanks to its offensive efficiency. They’re looking for their 12th win as a double-digit seed in the NCAA tournament, but the Boilermakers’ sizzling offense has shot 58% from three in the first two rounds. Texas, meanwhile, ranks in the bottom third in three-point defense but has picked things up defensively in March, when it counts. They’ve held three straight opponents to under 75 points during the tourney. All three matchups went under the total.
No. 9 Iowa vs. No. 4 Nebraska
- March 26, 7:30 p.m. ET on TBS/truTV
- Nebraska: -2
This is a compelling matchup that deserves to have a near pick’em spread. Iowa beat Nebraska 57-52 on February 18 in a defensive battle, but Nebraska has a recent win, 84-75 OT, from about two weeks ago. While Iowa is the more balanced squad, Nebraska’s strengths are in two areas that can go far in March: three-point shooting and defense. The Cornhuskers rank in the top 15 nationally in three-point attempt rate, and they led the Big Ten in adjusted defensive efficiency, holding opponents to under 30% from deep and forcing turnovers on nearly 20% of possessions.
No. 4 Arkansas vs. No. 1 Arizona
- March 26, 9:45 p.m. ET on CBS
- Arizona: -8
With the second-highest spread, Arizona enters as a strong No. 1 seed with a fast-paced, high-scoring attack. Arkansas, however, has the athleticism to challenge them defensively. The key question is whether Arkansas can slow Arizona down and turn the matchup into a physical game. If the tempo stays high, Arizona holds the advantage. If Arkansas disrupts rhythm and controls possessions, it could turn into a competitive Sweet 16 game.
No. 3 Illinois vs. No. 2 Houston
- March 26, 10 p.m. ET on TBS/truTV
- Houston: -3
This is a strength-versus-strength matchup. Two teams built on discipline and defense, making it one of the more intriguing tactical battles. Houston’s physical style and defensive pressure often dictate games, while Illinois has the scoring ability to counter. Expect a slower-paced game with possessions at a premium. The spread reflects Houston’s slight edge, along with its South Region location, which gives it a near-home-court advantage. However, Illinois brings greater offensive depth, with at least seven reliable scoring options compared to Houston’s three.
No. 5 St. John vs. No. 1 Duke
- March 27, 7:10 p.m. ET on CBS
- Dule: -6.5
Duke enters as a solid favorite, combining elite talent with strong tournament experience. St. John’s has been one of the more resilient teams, but the matchup is a clear step up in competition. Duke’s initial challenge against No. 16 Sienna might prove advantageous, as it ensures they approach the Red Storm with utmost seriousness. For St. John’s to stay competitive, they’ll need efficient scoring and minimal turnovers against a disciplined opponent.
No. 4 Alabama vs. No. 1 Michigan
- March 27, 7:35 p.m. ET on TBS/truTV
- Michigan: -10
Michigan has been one of the tourney’s best teams, winning its first two games by an average of 22 points. For that reason, the Wolverines have the biggest point-spread in the Sweet 16 at -10. Alabama has scoring ability, but this matchup tests its consistency and defense. Michigan’s balance and flashes of athletic dominance by senior forward Yaxel Lendeborg make them tough to beat straight up. If Alabama can push tempo and get hot from deep, they have a path to keep it close.
No. 3 Michigan State vs. No. 2 UConn
- March 27, 9:45 p.m. ET on CBS
- UConn: -2
This one is tied with Iowa/Nebraska as the tightest spread in the Sweet 16. UConn enters as a slight favorite, but Michigan State’s tournament experience and legendary coaching are major factors. Expect a physical, well-coached game where execution matters more than talent. This matchup could easily hinge on a single defining moment.
No. 6 Tennessee vs. No. 2 Iowa State
- March 27, 10:10 p.m. ET on CBS
- Iowa State: -4
Iowa State enters as a moderate favorite, but the outcome will likely depend on which team can impose its style.
Tennessee’s path hinges on disciplined defense, anchored by senior forward Felix Okpara, who has been elite at protecting the rim and limiting high-percentage looks. The Vols possess the depth and versatility to defend across positions, but turnovers on the offensive end could undermine that effort.
Iowa State thrives on pressure, forcing mistakes and turning them into quick offense. With senior guard Tamin Lipsey directing an efficient attack, the Cyclones’ ability to capitalize on turnovers could be the difference in a game that tightens late.
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