My predictions:
1948
✓ Thomas E. Dewey(R): 50.2%
Harry S. Truman (D, inc.): 49. 8%
1960
✓ John F. Kennedy (D): 51.2%
Richard Nixon (R): 48.8%
1968
✓ Richard Nixon (R): 52.1%
Hubert Humphrey (D): 47.9%
1980
✓ Ronald Reagan (R): 53.4%
Jimmy Carter (D, inc.): 46.6%
1992
✓ Bill Clinton (D): 52.5%
George Bush (R, inc.): 47.5%
1996
✓ Bill Clinton (D, inc.): 55.0%
Bob Dole (R): 45.0%
2000
✓ Al Gore (D): 50.4%
George W. Bush (R): 49.6%
2016
Depends which news story breaks in between the nights.
Reagan won over 50% of the vote in round one
...Brain fart...adjusted to include Wilson, he never won a majority either time.