Win 2 Slams (or more) in a Year and Tour Finals Undefeated

[McEnroeisanartist]

Players who have won 2 Slams in a Year and Tour Finals Undefeated in one year:

Borg - 1979
McEnroe - 1984 (wasn't round robin format, only 3 matches)
Lendl - 1986
Lendl - 1987
Federer - 2004
Federer - 2006