Ipswich boss Paul Jewell hailed his side's 5-1 thumping of West Ham as a "victory for hard work and determination".
The Blues put their recent troubles behind them to complete a double over the Hammers and notch an emphatic first win of 2012.
Seven matches had elapsed since their last victory but they were always in command at Portman Road, and Jewell said: "It was a great result but even sweeter to get a performance too."
He added: "West Ham are a very good team and I've got no doubts they'll get promoted."
Michael Chopra gave them a dream start and then Daryl Murphy's goal and a penalty from Lee Martin - either side of a consolation from Jack Collison - made it 3-1. Jay Emmanuel-Thomas smashed a fourth just after the hour and then added a fifth in stoppage time.
"We started well and then rode our luck from one or two set-plays," said Jewell. "But overall it was a victory for hard work and determination.
"We worked exceptionally hard, hunted in packs and didn't want to give them any time on the ball. We hassled them all over the pitch and played some good stuff of our own."
Shocked Hammers boss Sam Allardyce said: "I was bitterly disappointed. I didn't expect us to put on such a poor performance defensively.
"That's been our ultimate strength this season, especially away from home, but as a defensive unit we just disintegrated.
"Ipswich came out of the blocks quicker than us and exposed the gaping holes we left in our back four. When you do that you get punished. We were very, very poor in that department and that's why we lost the game."