On 8 August 2009, Norwich suffered their worst home defeat in club history, losing 1-7 to Colchester on opening day.
Norwich had ended a four-year run in the Championship, England's second division, with relegation to the third-tier League One at the end of the 2008-09 season. Many observers tipped them for a quick return to the Championship, with their first hurdle coming at home against Colchester, who had themselves just dropped into League One in 2008.
Playing before a crowd of 25,217, Norwich's plans quickly came undone as Colchester striker Kevin Lisbie scored in just the tenth minute, then his striking partner Clive Platt scored three minutes later. By the break, a stunned Norwich were down 0-5, with additional goals from Platt (19') and Lisbie (38') sandwiched around one from David Fox (22').
Norwich eventually managed to bag one of their own, with a 72nd-minute strike from Cody McDonald, but Colchester substitute David Perkins restored the margin four minutes later. Then Scott Vernon, who had come on for Lisbie, added insult to injury with a 90th-minute tap-in to end the day at 1-7.
The loss cost manager Brian Gunn his job as the club sacked him six days later. To replace him, they hired Colchester manager Paul Lambert, who guided them to promotion at the end of the season, then to the Premier League in 2011.
The 1-7 scoreline remains their worst home loss, but the worst overall defeat was a 10-2 drubbing at Swindon Town in 1908.