Ipswich's Jonathan Walters struck the only goal of the game in a 1-0 victory at Derby.
Jewell disappointed on Rams anniversary
Ipswich forward Jonathan Walters struck the only goal of the game to hand his side a 1-0 victory at Derby in Paul Jewell's 50th league game in charge of the Rams.
Having taken charge of Derby in November 2007, Jewell was hoping to mark his half-a-century of matches in the hot-seat in style.
However, Walters headed the only goal of the game in the 14th minute as Ipswich pinched the spoils while Derby had Jordan Stewart sent off in the second half at Pride Park.
Derby struggled to break down a stoic Ipswich defence until substitute Steve Davies struck a post after the interval, but their task was made even greater when Stewart was sent off for clattering into David Norris after 77 minutes.
It was the first time that Derby had failed to score at home since Southampton kept them at bay to win by the same scoreline at the end of August.
Impressed
On-loan winger Nacer Barazite made a rare start for Derby in his final game before returning to Arsenal.
The Holland Under 19 international impressed from the bench against Watford and Preston and replaced Gary Teale in the Rams' starting line-up.
Ipswich manager Jim Magilton made two changes. Danny Haynes twisted an ankle in the Boxing Day defeat to Birmingham so Veliche Shumulikoski returned to the side, while Walters was preferred to Jon Stead in attack.
Derby made the brighter start but their rhythm was interrupted by an injury to top scorer Nathan Ellington after only nine minutes. The striker limped off to be replaced by Luke Varney.
Just five minutes later Ipswich took the lead through Walters as he stooped to glance a header in off the far post following Ben Thatcher's left-wing cross for his fifth goal of the season for the Suffolk side.
Long-range efforts
Stephen Bywater prevented the visitors from extending their lead when he parried Kevin Lisbie's 12-yard shot midway through the first half.
Derby created little and were restricted to long-range efforts but Miles Addison, Stewart and then Kris Commons failed to test Ipswich keeper Richard Wright.
Jewell replaced Rob Hulse with Davies at the break and the substitute almost brought the Rams level after 55 minutes. His shot from the left-hand side of the box beat Wright but came back off a post.
Stewart's red card all but ended the game as a contest as Ipswich seemed content to keep the ball and run down the clock.
Moritz Volz could have added a second goal with two minutes remaining but the defender shot wide from the edge of the box.
