March Madness Sweet 16 Betting Trends
All data, stats and trends are updated as of Wednesday, March 26, 1:00 p.m. ET.
Chalk Full
Favorites Strike BackEntering the Sweet 16, chalk has mostly survived both in the bracket world and in the betting world, too…
- Favorites of 8 points or more are 18-0 SU in the NCAA Tournament — the fourth time in the history of the tournament that 18 or more 8+ pt favorites won outright before the Sweet 16 with no losses.
- Favorites of 6 points or more are 26-2 SU and 19-9 ATS in the NCAA Tournament — Over the last two years, these big favs are 51-6 SU and 38-19 ATS entering the Sweet 16.
- We have no 11 seeds or higher in the Sweet 16 for the first time since 2007.
- Top-4 seeds are 19-13 ATS in this year's tournament and 40-22 ATS over the last two years entering the Sweet 16.
- Lower-seeded teams finished 27-21 ATS through two rounds. They are above .500 ATS three straight years through two rounds for a combined 81-62-2 ATS mark in the last three tournaments.

SEC Strikes Back
The New Sweet 16Through the Round of 64 and First Four, the SEC was 5-9 ATS, and they were mainly the joke of the dance. In the Round of 32, the SEC went 6-2 ATS, and of the five "upsets" in March Madness—five points or more on the spread—the SEC has three of those, one with Ole Miss and two with Arkansas.
In March, SEC underdogs are 29-19 ATS and 6-3 ATS in the NCAA Tournament. This season, the SEC is 28-13 ATS as an underdog vs. non-conference opponents.
The SEC is 15-7 SU in the 2025 NCAA Tournament, the Big 12 is 10-3 SU and the Big Ten is 12-4 SU. Combined, the SEC, Big Tenn and Big 12 are 29-6 SU vs. all other conferences in this year's dance. Every other conference is 15-38 SU in this year's tournament.

Back In The 70's
Alabama's High TotalThe Alabama–BYU over/under could make some history in the Sweet 16. The over/under currently sits at 175.5.
We've seen five games close with a total above 170 in the last 30 years — three have happened since the 1995 NCAA Tournament, and they were all last year, all with Alabama — closing at 172.5, 173, and 175. The record is 177 with Texas–Maryland back in 1995.
This year has been even higher.
On Feb. 22, vs. Kentucky, they had a game close at 181.5—the highest total in any CBB game since 2019, and the highest closing total in a Conference Tournament game in the last 20 years.

First Time
Cal's New ExperienceIn his coaching career, John Calipari had never been an underdog in the Round of 64 — that ended Friday (a favorite in 23 straight R64 games). Then he was an underdog again in the Round of 32 and beat 2-seed St. John's and Rick Pitino.
Now Calipari is an underdog again in the Sweet 16. The first time he's ever been an underdog in three straight NCAA Tournament games and going back to the SEC Tournament, the 4th straight game he's been a dog — his most in a row since at least 2005.


Southern History
Dog AgainArkansas and Ole Miss are the lone teams to win as underdogs in the Round of 64 and Round of 32 and now they are both listed as underdogs in the Sweet 16.
If either win, they would be the 16 team since 1985 to win as dogs in the first three rounds entering the Elite 8 and they would become just the second from the SEC, joining LSU in 1987. In the last 30 years, we've actually seen six major conference teams pull off this 3-game stretch: 2024 Clemson, 2021 Oregon State, 2021 UCLA, 2018 Syracuse, 2017 Xavier and 2002 Missouri.

Dogless Race
No LongshotsOf the 16 teams left in the field entering the Sweet 16, none had odds higher than 100-1 to win it all at the start of the regular season back in November—this is the first time since 2009 that has been the case.
The biggest longshots from preseason are Texas Tech and Maryland, who both had 100-1 odds to win it all.

History Unkind
Gators vs. WorldIsn't this interesting? Florida opened the tournament by beating Norfolk State but not covering. Then, they beat UConn but couldn't cover the lofty 9-point spread. The only team since 1985 to start an NCAA Tournament 0-2 ATS and go on to win it all was Arizona in 1997.
Florida entered the regular season at 60-1 odds to win it all and was awarded a one-seed. Since 2009, we’ve had 12 teams listed at 30-1 or higher in the preseason and end up with a 1 seed — two made the Final Four, Gonzaga in 2017 and Minnesota in 1997, and none have won it all

Quiet on the Western Front
Is This The Year?Since Arizona won the national title in 1997, no team west of Texas has won it all. We only have two teams left in the field that fit this criteria: BYU and Arizona

Reversal of Fortune
Have A Lead, Hold A Lead?Teams who lead at the half in the NCAA Tournament went 21-30 against the second half spread in this year's NCAA Tournament entering the Sweet 16. That 21-30 2H ATS mark is the 2nd-worst for any tourney in the last 15 years after the Round of 32.
It is crazy, especially when you consider this: Teams that led at the half in the NCAA Tournament were above .500 against the second-half spread in six consecutive tournaments dating back to 2018, going 220-160-5 (58%) against the second-half spread in that span entering this year.

Change It Up
Avoiding Houston CurseHouston lost in the Sweet 16 in 2023 and 2024, both times as the betting favorite. Since 1980, 35 one-seeds have lost in the Sweet 16. Only Duke, in 2005 and 2006, lost in consecutive years as a one-seed in the Sweet 16; no team has done it in three straight years.

True Home Dog
One For the StatePurdue will be playing the Sweet 16 in their home state of Indianapolis. In the seeding era, we’ve had 70 teams playing in Sweet 16 or later playing in their home state.
7 of those 70 teams were underdogs of 7 pts or more. They went 0-7 SU and 3-4 ATS — none being able to pull the upset.