After seeing his side win a crucial Sky Bet League 1 match at Valley Parade, manager Paul Cook couldn't hide his delight at both his side's performance and the result.
Striker Byron Harrison scored his first goal for the Spireites with a goal in first half stoppage time and a committed second half showing earned the visitors their victory and a place in the play-off positions.
"I'm delighted," said Cook. "The players must take all the credit. We were disappointed with the performance on Saturday but as poor and as lethargic as we were on Saturday it was the opposite tonight.
"We were magnificent. We knew we'd make a change or two coming here and not many teams have come here and won, the character, the work ethic and the desire of the team was there, Byron Harrison getting a good goal to kick-start his [Spireites] career, so all in all it was a great night for us, but there's still a long way to go.
Cook was especially happy for Harrison, who showed composure to pounce on Gary MacKenzie's under-hit header to round the 'keeper and slot home.
"He was excellent tonight," said Cook. "He showed the reasons why we signed him. Football's tough because he's had a family bereavement, it's been a bit stop-start, but there's a player in Byron.
"Sometimes it doesn't happen for you in a week or a two at a football club and you must be given a bit of time to settle.
"I'm delighted for all the players tonight. Ian Evatt was magnificent and you can go right through the side. Ritchie Humphreys was outstanding in the middle of the park and also our supporters travelled in great numbers with a little bit more belief that the season isn't quite over yet."
Harrison was a surprise starter after not appearing on the published teamsheet, but after Armand Gnanduillet picked up a late injury the 27-year-old was thrust into the starting 11.
"He [Gnanduillet] just got a little twinge before the game and felt that if he started we'd have to bring him off early, so all-in-all that's disappointing but if Armand doesn't start Byron does and we're going to need all these different players before the end of the season."