Had very little to do as the visitors struggled to get out of their own half, never mind register attempts on goal. Held Diame's effort in the first half on an otherwise quiet night.
Barely involved as first Maiga and then Carlton Cole did little to trouble the returning centre-back. Will have had fewer more comfortable evenings.
Passing from the back was a delight, with balls into Negredo helping create the second goal. Had little defending to do but was his usual solid self.
Got the better of the disappointing Downing and proved a more-than-useful option going forward, providing the cross for Dzeko's strike. One of the more underrated cogs in this City machine.
Was caused no problems by Joe Cole on the left and was allowed to maraud at will. His crosses were not always at their best but provided a decent outlet.
Pin-point pass over the top created Negredo's opener before he picked himself up from an ankle knock to run 50 yards for the third. Deservedly rested for the final 25 minutes.
Kept the ball effectively in the middle of the park and posed a threat from set-pieces, heading wide early on. A solid deputy for Fernandinho.
Like Nasri, his quick feet had the West Ham defence mesmerised. Played his part in a couple of goals as he continues to relish freedom he has been given under Pellegrini.
Caused problems throughout, and was unfortunate to see his effort saved in the first half. A continuation of his fine displays so far this season.
Three superb finishes brought him a hat-trick inside 50 minutes as he ran Johnson and, particularly, McCartney ragged. Tackle on edge of his own box at 3-0 summed up an all-round display.
A fine pass round the corner sent Negredo free for a second goal and deservedly got himself on the scoresheet with a fine near-post finish after the break. Added a second late on with a powerful finish.
Could do little with any of the goals, and made two or three excellent saves to keep the score from becoming more embarrassing for the Hammers.
Few will have struggled more on their debut as he allowed Toure all the time in the world for the third goal. Seemed to be struggling with fitness by the end.
Arguably the best of West Ham's defenders, though that is nothing to write home about. The quick feet of Silva and Nasri left him for dead on occasion.
Couldn't deal with Zabaleta's overlaps in the first half and almost gifted the Argentine a goal in the opening stages. Moved to centre-back in the second half but continued to struggle.
Got caught under the ball for the first, was outpaced by Negredo for the second and was too eager to clear for the third. Improved slightly when moved to left-back after the break.
For a local lad to look so uninterested sums up the issues West Ham have. Got nowhere near enough to Silva for Negredo's third and looked lost throughout.
Crossing from both open play and set-pieces left much to be desired as he was totally dominated by Clichy. Seems to be continuously going backwards.
The best of West Ham's side, especially in the first half as he got in their only shot on target. Faded as the game wore on in the second half.
Failed to shield his defence effectively as the game largely passed him by. Not good enough with the ball to perform in a central role.
Tried to get his team going but a lack of confidence meant he became increasingly frustrated. Struggled to make much of an impact.
Did his best to try and work Kompany and Lescott hard, but was left pretty isolated by poor midfield. Replaced at half-time by Carlton Cole.
Looked solid in a slightly unfamiliar defensive-midfield role, making a couple of key challenges.
Could make little impact on the game as he replaced Negredo for the closing stages.
Showed the odd glimpse of the pace he possesses, but struggled to keep hold of the ball when he was given possession in the final third.
Didn't start well as he was berated by Allardyce for not being ready to come on. Had little impact on the game once he finally finished tying his boots.
Made little impact on the game after replacing a visibly unhappy Noble in second period.
Lost the ball through poor control on too many occasions as he was marked out of the game by Kompany.