"It was always going to be a big ask," said Evans, whose side are now unbeaten in six matches.
"I think enough has been said. We felt from a footballing perspective, from a sporting integrity point of view, we felt disadvantaged that a team as good as Derby could have an extra day's recovery.
"When you go in front in the 71st minute, I think that's when you need the oxygen mask in a normal week.
"So when you've played 48 hours before, it makes it a double oxygen mask and that was probably why Derby got a point."