Djokovic won 16 titles between 2011-2012. In the last 30 years, the following players won 16 or more titles between two consecutive years: Lendl (82-83) - 22 McEnroe (83-84) - 20 McEnroe (84-85) - 21 Lendl (85-86) - 20 Lendl (86-87) - 17 Sampras (93-94) - 18 Muster (96-96) - 19 Sampras (96-97) - 16 Federer (03-04) - 18 Federer (04-05) - 22 Federer (05-06) - 23 Nadal (05-06) -16 Federer (06-07) - 20

also >15: nastase: 12 in 1972 + 15 in 1973 = 27 laver: 18 in 1969 + 9 in 1970 = 27 connors: 11 in 1973 + 15 in 1974 = 26 borg: 9 in 1978 (or 1980) + 13 in 1979 = 22 muster: 12 in 1995 + 7 in 1996 = 19 smith: 9 in 1972 + 8 in 1973 = 17 djokovic: 10 in 2011 + 6 in 2012 = 16 (open era, i mean)

quality vs. quantity. many of top players in 70s, 80' etc. were playing too many MM tournaments (I mean look at Connors for example)

According to timnz, this is the weight for each tournament: Federer = (17 x 2) + (6 x 1.4) + (7 x 1.2) + (21 x 1) = 71.8 Lendl = (8 x 2) + ((5 + 1) x 1.4)) + (11 x 1.2) + (22 x 1) = 59.6 Sampras = (14 x 2) + (5 x 1.4) + (4 x 1.2) + (11 x 1) = 50.8 Nadal = (11 x 2) + (0 x 1.4) + (5 x 1.2) + (21 x 1) = 49 McEnroe (7 x 2) + ((3 + 4) x 1.4)) + (4 x 1.2) + (19 x 1) = 47.6 Borg = (11 x 2) + ((2 + 1) x 1.4)) + (5 x 1.2) + (15 x 1) = 47.2 Connors = (8 x 2) + ((1 + 2) x 1.4)) + (7 x 1.2) + (17 x 1) = 45.6 Agassi = (8 x 2) + (1 x 1.4) + (7 x 1.2) + (17 x 1) = 42.8 Becker = (6 x 2) + ((3 + 1) x 1.4)) + (4 x 1.2) + (13 x 1) = 35.4 Djokovic = (5 x 2) + (2 x 1.4) + (4 x 1.2) + (13 x 1) = 30.6 Edberg = (6 x 2) + (1 x 1.4) + (5 x 1.2) + (8 x 1) = 27.4 Wilander = (7 x 2) + (0 x 1.4) + (4 x 1.2) + (8 x 1) = 26.8 http://tt.tennis-warehouse.com/showthread.php?t=445573