Derby County missed a chance to return to the championship play-offs when Jon Nolan's equalizer scored a crucial point in the fight against Ipswich Town.
Tom Lawrence fired Frank Lampard's derby in the second minute, defeating Paul Lamberts Ipswich for fear of a fifth consecutive defeat.
Nolan's second goal from Ipswich drew the hosts into the second half after ten minutes before Duane Holmes missed the lead in the goal line.
Derby have lost just once in their last seven league games, while Ipswich have only scored five points from their last ten league games despite their setback and are still in the lead.
Lawrence opened the scoring when his volleyball deflected Ipswich defender Jonas Knudsen and struck goalkeeper Bartosz Bialkowski after Jayden Bogle threw the ball over the area.
Nolan canceled out in the second half after 10 minutes – just two minutes after replacing the injured Flynn Downes – when he found the bottom corner after a nice pass from Collin Quaner.
Knudsen had a good connection with right-wing volleyball from the corner just 20 minutes from time, but Holmes saved Derby by clearing the line.
Derby should have won in the final minutes, but Fikayo Tomori battled the post before David Nugent struck the crossbar.
This meant that Lambert was denied the win, but he had to save a third defeat in a row against the Rams, after he had lost his two previous games against Blackburn and Wolves.
Ipswich finished a series of four home defeats in the league against Derby, who has managed since 1986/87, no duel of the Suffolk national team.
Ipswich manager Paul Lambert told BBC Radio Suffolk:
"Apart from about 60 seconds of the game I was very happy with ourselves.
"We did not start badly in the few minutes, then we lost a goal, but after that it was relentless.
"We lost the game on Sunday (against Norwich) but we never capitulated and we were the better football player.
"I was proud of the team on Sunday, even though we lost, everyone was injured and the training ground was as expected, but we came back really strong and after the disappointment on Sunday we were outstanding."
Derby manager Frank Lampard told BBC Radio Derby:
"It's not a loss, but by beating a 1-0 team at the bottom of the table, we allowed them to go into the game because we're not at their best.
"We got off to a good start, on the front foot, got bodies into the pits, and we reached our goal, and that's one of the night's most frustrating moments, they would have wanted us to take some control and continue to win it and we did not do it.
"Giving away the ball puts you in control of a game, and it's as simple as that. Forgiving simple passports and providing self-reliance and counterattacks to a fighting team is the main sin.
"You go 1-0 and want to take the game away and make you feel like they're at the bottom of the table, you give them a glimmer of life and they'll fight to the end."