Actually I just did the update, hope its all correct.
Federer:
Against Nadal: 1 loss (AO final) and 1 win (Madrid final), overall: 1-1
Against Murray: 2 losses (Doha, Indian Wells) and 1 win (Cincy semis), overall: 1-2
Against Djokovic: 3 losses (Miami, Rome, Basel) and 2 wins (Cincy, USO), overall: 2-3
Against Del Potro: 1 loss (USO), and 3 wins (AO, Madrid, FO), overall: 3-1
Against Roddick: 0 losses, and 4 wins (AO, Miami, Madrid, Wimbly), overall: 4-0
Overall: Fed is 11-7 against top 6 players in 2009. ( )
At slams: Fed is 5-2 against top 6 players at slams this year.
None slams: Fed is 6-5 against top 6 players at slams this year.
Per surface:
HC: 6 losses
Clay: 1 loss
Grass: 0 losses
Nadal
Against Federer: 1 loss (Madrid) and 1 win (AO), overall: 1-1
Against Murray: 1 loss (Rotterdam) and 2 wins (IW, Monte Carlo), overall: 2-1
Against Djokovic: 2 loss (Cincy, Paris) and 4 wins (DC, MC, Rome, Madrid), overall: 4-2
Against Del Potro: 3 losses (Miami, Montreal, USO), 1 win (IW), overall: 1-3
Against Roddick: 0 losses, 1 win (IW), overall: 1-0
Overall: Nadal is 9-7 against top 6 players in 2009. ( )
At slams: Nadal is 1-1 against top 6 players at slams this year.
None slams: Nadal is 8-6 against top 6 players at nonslams this year.
Per surface:
HC: 6 losses
Clay: 1 loss
Grass: 0 losses
Murray
Against Federer: 1 loss (Cincy) and 2 wins (Doha, IW), overall: 2-1
Against Nadal: 2 losses (IW, MC) and 1 win (Rotterdam), overall: 1-2
Against Djokovic: 0 losses, 1 win (Miami), overall: 1-0
Against Del Potro: 1 loss (Madrid), 2 wins (Miami, Montreal), overall: 2-1
Against Roddick: 1 loss (Wimbly), 1 win (Doha), overall: 1-1
Overall: Murray is 7-5 against top 6 players in 2009. (58.3%)
At slams: Murray is 0-1 against top 6 players at slams this year.
None slams: Murray is 7-4 against top 6 players at slams this year.
Per surface:
HC: 2 losses
Clay: 2 losses
Grass: 1 loss
Djokovic
Against Federer: 2 losses (Cincy, USO) and 3 wins (Miami, Rome Basel), overall: 3-2
Against Nadal: 4 losses (DC, MC, Rome, Madrid) and 2 win (Cincy Paris), overall: 2-4
Against Murray: 1 loss (Miami), 0 wins, overall: 0-1
Against Del Potro: 0 losses, 1 win (Rome), overall: 1-0
Against Roddick: 3 losses (AO, IW, Montreal), 0 wins, overall: 0-3
Overall: Djokovic is 6-10 against top 6 players in 2009. ( )
At slams: Djokovic is 0-2 against top 6 players at slams this year.
None slams: Djokovic is 6-8 against top 6 players at slams this year.
Per surface:
HC: 6 losses
Clay: 4 losses
Grass: 0 losses
Del Potro
Against Federer: 3 losses (AO, Madrid, FO) and 1 win (USO), overall: 1-3
Against Nadal: 1 loss (IW) and 3 wins (Miami, Montreal, USO), overall: 3-1
Against Murray: 2 losses (Miami, Montreal), 1 win (Madrid), overall: 1-2
Against Djokovic: 1 loss (Rome), 0 wins, overall: 0-1
Against Roddick: 0 losses, 2 wins (Washington, Montreal), overall: 2-0
Overall: Del Potro is 7-7 against top 6 players in 2009. (50%)
At slams: Del Potro is 2-2 against top 6 players at slams this year.
None slams: Del Potro is 5-5 against top 6 players at slams this year.
Per surface:
HC: 4 losses
Clay: 3 losses
Grass: 0 losses
Roddick
Against Federer: 4 losses (AO, Maimi, Madrid, Wimbly) and 0 wins, overall: 0-4
Against Nadal: 1 loss (IW) and 0 wins, overall: 0-1
Against Murray: 1 loss (Doha), 1 win (Wimbly), overall: 1-1
Against Djokovic: 0 losses, 3 wins (AO, IW, Montreal), overall: 3-0
Against Del Potro: 2 losses (Washington, Montreal), 0 wins, overall: 0-2
Overall: Roddick is 4-8 against top 6 players in 2009. (33.3%)
At slams: Roddick is 2-2 against top 6 players at slams this year.
None slams: Roddick is 2-6 against top 6 players at slams this year.
Per surface:
HC: 6 losses
Clay: 1 losses
Grass: 1 losses