Every year when the NCAA Tournament rolls around, the same assumptions are made about the same teams.
"Tom Izzo always dominates in March."
"Duke is prone to an early upset."
"Don't bet against Kansas in the tournament."
"Gonzaga doesn't play anyone in the season, so it'll struggle early."
We have heard them all. But how true are these assumptions?
We used our Action Network Labs database to figure out which programs have been the best teams in the NCAA Tournament against the spread since 2005.
1. Butler
Record ATS: 23-5-1
Winning Percentage: 79.3%
Return on Investment: 58%
$100 Bettor Profit: $1,681
2. Xavier
Record ATS: 20-6-3
Winning Percentage: 69%
Return on Investment: 44.9%
$100 Bettor Profit: $1,303
3. West Virginia
Record ATS: 20-10-1
Winning Percentage: 79.3%
Return on Investment: 29.4%
$100 Bettor Profit: $910
4. Villanova
Record ATS: 29-19
Winning Percentage: 60.4%
Return on Investment: 17.4%
$100 Bettor Profit: $837
5. VCU
Record ATS: 14-5
Winning Percentage: 73.7%
Return on Investment: 42.9%
$100 Bettor Profit: $815
6. Oregon
Record ATS: 17-8-1
Winning Percentage: 65.4%
Return on Investment: 30.4%
$100 Bettor Profit: $790
7. Michigan
Record ATS: 21-12-3
Winning Percentage: 58.3%
Return on Investment: 21.9%
$100 Bettor Profit: $788
8. North Carolina
Record ATS: 35-25-2
Winning Percentage: 56.5%
Return on Investment: 12.6%
$100 Bettor Profit: $783
9. Florida
Record ATS: 25-16-1
Winning Percentage: 59.5%
Return on Investment: 18.4%
$100 Bettor Profit: $772
10. Kentucky
Record ATS: 27-19-3
Winning Percentage: 55.1%
Return on Investment: 12.9%
$100 Bettor Profit: $631
11. Florida Gulf Coast
Record ATS: 6-0
Winning Percentage: 100%
Return on Investment: 98.3%
$100 Bettor Profit: $590
12. Syracuse
Record ATS: 20-13
Winning Percentage: 60.6%
Return on Investment: 17.7%
$100 Bettor Profit: $585
13. Western Kentucky
Record ATS: 7-1
Winning Percentage: 87.5%
Return on Investment: 71%
$100 Bettor Profit: $568
14. Purdue
Record ATS: 18-12
Winning Percentage: 60%
Return on Investment: 16.1%
$100 Bettor Profit: $483
15. Wisconsin
Record ATS: 23-17-3
Winning Percentage: 53.5%
Return on Investment: 11.1%
$100 Bettor Profit: $477
16. South Carolina
Record ATS: 5-0
Winning Percentage: 100%
Return on Investment: 95.4%
$100 Bettor Profit: $477
17. Ohio
Record ATS: 6-2
Winning Percentage: 75%
Return on Investment: 48.9%
$100 Bettor Profit: $391
18. Albany
Record ATS: 5-1
Winning Percentage: 83.3%
Return on Investment: 61.7%
$100 Bettor Profit: $370
19. USC
Record ATS: 10-6
Winning Percentage: 62.5%
Return on Investment: 21.7%
$100 Bettor Profit: $348
20. Northern Iowa
Record ATS: 7-3
Winning Percentage: 70%
Return on Investment: 34.7%
$100 Bettor Profit: $347