Date: October 19th, 2017 5:55 PM
Author: Chestnut Quadroon Water Buffalo
Year End #1s have had 3 or more losses to the same player in the year they were #1:
2017 - Nadal - 4 to Federer
2016 - Murray - 3 to Djokovic
2015 - Djokovic - 3 to Federer
2014 - Djokovic - 3 to Federer
2013 - Nadal - 3 to Djokovic
2012 - Djokovic - 3 to Nadal and 3 to Murray
2009 - Federer - 3 to Djokovic
2006 - Federer - 4 to Nadal
2003 - Roddick - 3 to Schuettler
2002 - Hewitt - 4 to Moya
2001 - Hewitt - 3 to Haas
2000 - Kuerten - 3 to Rafter
1999 - Agassi - 4 to Sampras
1997 - Sampras - 3 to Larsson
1995 - Sampras - 3 to Agassi
1992 - Courier - 3 to Becker
1986 - Lendl - 3 to Becker
1983 - McEnroe - 3 to Wilander
1982 - McEnroe - 4 to Lendl
1981 - McEnroe - 3 to Lendl
1977 - Connors - 3 to Stockton
1976 - Connors - 3 to Nastase
1973 - Nastase - 4 to Okker
(http://www.autoadmit.com/thread.php?thread_id=3768954&forum_id=2#34481871)