The 2026 NCAA Men’s Basketball Tournament has reached the Sweet 16 stage, with Michigan emerging as the clear College Basketball odds favorite to win the national championship at +300 odds across major sportsbooks. Next, Arizona is close behind at +325, while Duke sits in third at +360. These three teams have separated themselves after strong performances in the early rounds, with Michigan benefiting from dominant wins to leapfrog others on the board.
Houston represents the next tier of online betting at +700, offering solid value as a deeper contender with a strong defense and experience. Namely, Illinois and Purdue both hover around +1300, suggesting they could make deep runs if their offenses click in key matchups. Iowa State at +1500 remains dangerous with its balanced play, while UConn at +2500 reflects some regression from preseason expectations but still carries a championship pedigree.
Following down the online betting board, teams like Michigan State at +3000, St. John’s at +3500, and Arkansas and Nebraska, both around +4000, offer longer-shot appeal for those seeking higher payouts. Tennessee at +5500, Iowa at +6600, and Alabama at +10000 trail significantly, with Texas bringing up the rear at +25000 after a surprising advancement.
Certainly, the tournament has featured notable surprises, such as Iowa’s upset of a top seed, opening the door for underdogs, while top programs like Michigan, Arizona, and Duke have handled business efficiently.
2026 Sweet 16 Preview
Thursday, March 26
In the West Regional at SAP Center in San Jose, California, No. 2 Purdue faces No. 11 Texas at 7:10 p.m. on CBS, followed by No. 1 Arizona against No. 4 Arkansas at 9:45 p.m. also on CBS.
Over in the South Regional at Toyota Center in Houston, No. 4 Nebraska takes on No. 9 Iowa at 7:30 p.m. on TBS and truTV, with No. 2 Houston meeting No. 3 Illinois at 10:05 p.m. on the same networks.
Friday, March 27
In the East Regional at Capital One Arena in Washington, D.C., No. 1 Duke battles No. 5 St. John’s at 7:10 p.m. on CBS, and No. 2 UConn squares off against No. 3 Michigan State at 9:45 p.m. on CBS.
The Midwest Regional at United Center in Chicago has No. 1 Michigan versus No. 4 Alabama at 7:35 p.m. on TBS and truTV, followed by No. 2 Iowa State against No. 6 Tennessee at 10:10 p.m. on the same channels.
2026 March Madness Odds Betting Tips
Purdue-Texas
Purdue has looked dominant, covering easily in prior March Madness Betting Odds rounds with strong interior play and Trey Kaufman-Renn providing consistent scoring.
Sharps lean toward Purdue covering, as the Boilermakers are 18-8 ATS as favorites under Matt Painter in the tournament, and Texas struggles defensively against physical Big Ten-style teams.
The total leans under in a regional semifinal, with both teams capable of slowing the pace.
Nebraska-Iowa
Nebraska’s defense has been stout, suffocating opponents and forcing turnovers, while Iowa’s surprise run featured a gritty win over a top seed
But the Hawkeyes lack depth against a more balanced Cornhuskers squad.
Nebraska covers here, and the low total suits their grind-it-out approach, favoring the under.
Arizona-Arkansas
Arizona has handled business efficiently despite some close calls with elite guard play and rim protection.
Arkansas brings athleticism and scoring, but the Wildcats’ depth and defensive versatility should keep this from getting too close.
Arizona covers comfortably, while the high total has value on the over, given Arkansas’s up-tempo style, which forces Arizona into more possessions.
Illinois-Houston
Houston’s elite perimeter D is clashing against Illinois’ balanced attack.
Houston covers narrowly as favorites, with a home-court feel at Toyota Center and the ability to force misses and turnovers.
Lean under the total, as both squads rank high in adjusted defensive efficiency, limiting transition opportunities.
St. John’s-Duke
Duke has cruised with strong wins, showing why they’re a top contender.
St. John’s brings physicality and guard depth, but faces a tough matchup against Duke’s length and athleticism.
Duke covers, as the line feels short given their dominance, and the total leans under, with defensive intensity likely prevailing.
Michigan-Alabama
Michigan has been unstoppable offensively
But Alabama’s pace and shot volume could easily push the score over the lofty total.
Take the over as both teams play fast and allow points, while Michigan covers given their momentum and home-region feel in Chicago.
UConn-Michigan State
UConn and Michigan State bring championship experience with strong defenses and veteran guards.
Lean Michigan State to cover slightly with a home-state edge and the under, as these physical Big Ten-style battles often stay low-scoring.
Iowa State has balanced play and defensive grit.
Tennessee brings a streaky offense.
Lean on Iowa State to cover with its consistency, and lean on the under, as both prefer a controlled tempo.