However, Wolves proved it was no fluke by beating Tottenham 1-0 for a second time at Molineux in midweek.
The victory lifted Mick McCarthy's side out of the bottom three and Craddock is now looking to stay out of trouble for the remainder of the campaign.
"It's massive. We have got six points off Tottenham now and not many teams do that. They are looking to be a top-four team," the defender said in the Daily Mirror.
"The boys can look at what they have done and be very proud of that. It does not happen too many times.
"Every result is so vital and this is a big boost, if we can stay above the relegation zone for the rest of the season that'll be fantastic.
"That's what the aim is and that's what we're doing at the moment. It would have been even better if we could have had the Birmingham points too but it wasn't to be."
Wolves looked set to defeat local rivals Birmingham last Sunday but a late Kevin Phillips brace turned the game on its head.
Craddock accepts that it is important to keep picking up points against the top teams as well as those scrapping for survival.
"Yes, definitely, we'd already beaten Tottenham away and people were maybe thinking that was a freak result," he added.
"But now we've maybe proved we're their bogey team. But we went to Hull and drew, which we think is now not a bad result considering they drew with Chelsea and beat Man City. We went to Hull and should have won the game.
"It will probably go down to the last game. But, hopefully, we'll be so far out of it by then that it won't affect us. It'll be tough all the way.
"We always feel we can nick a goal with the quality we've got up front, but clean sheets are massive and hard to come by for any team in the Premier League.
"We've got to be pleased with that and try to keep it going."
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