Colchester manager Geraint Williams refused to offer up an excuse after his side slipped to defeat at Ipswich.
The U's have defied the odds so far this term and started the day in the play-off places.
Karl Duguid put them ahead in the 15th minute, but goals from Alan Lee, Sylvain Legwinski and Danny Haynes turned the game on its head and deemed Chris Iwelumo's late penalty nothing more than a consolation.
The defeat resulted in Colchester slipping out of the play-off picture and Williams had no excuses.
"On balance of play Ipswich deserved to edge it. We have no excuses," said Williams.
"To be fair I think Ipswich were more of a threat in the first half and we were fortunate to be level at the interval.
"It was disappointing to concede a goal from a corner. In fact we could have done better with all three goals we conceded."
Ipswich had David Wright sent off in injury-time and Jim Magilton is hopeful the referee will have a change of heart.
"It was a very harsh decision in the dying embers of the game," Magilton said.
"He could not get out of the way and I'm not sure if it was handball anyway.
"I hope the referee looks at it again and rescinds his decision - but I very much doubt it."