In the streak of four #1 seeded champions from 2007-2010, going into the tournament, the teams were nationally ranked #1 Florida in 2007, #4 Kansas in 2008, #2 North Carolina in 2009, and #3 Duke in 2010. 1+4+2+3 = 10 . . . Again in the streak of four #1 seeded champions from 1999 to 2002, the teams were nationally ranked #3 UConn in 1999, #2 Michigan State in 2000, #1 Duke in 2001, #4 Maryland in 2002. 3+2+1+4 = 10.
That means in the two streaks that saw four #1 seeded teams win the championship, when added together, the champions had a national ranking that equaled 10. In 2017, one-seeded North Carolina was ranked #3, 2018 Villanova was ranked #2, 2019 Virginia was ranked #2. 3+2+2+X = 10. Fortunately, we finally get to apply some of the algebra we learned in high school, which means solving for X brings us at 3. Meaning the #3 team in the country going into the tournament will win the National Championship. Dayton Basketball was ranked third in the pre-March Madness ranking released by the AP.
3. Everything Equals Out
The third reason is dependent on the last. Trends tend to equal out, so if Dayton were to win, that would make it two #3 ranked teams and two #2 ranked teams over the last 4 seasons. That means the trends equal out. The South region has won 2 of the last 3, with the East winning the other. If all things are to equal out, then that means a team from the East will win this time around.
So, according to our spotless and 100% foolproof research, the Number 1 seeded team from the East region would have won the NCAA Tournament. Your Number 1 seeded team from the East region is the Dayton Flyers.