Ollie Banks netted his first league goal of the season on Saturday, picking the perfect time to do so in the 81st minute at Barnsley to secure three points for the underdog visitors.
The goal came after some fine wing work by Gboly Ariyibi who beat his man on the byline and laid back for Banks to hammer home from eight yards out.
At the time the match was level after Adam Hammill had wiped out Lee Novak's header, but the Spireites were down to ten men after Jamal Campbell-Ryce had picked up two quick-fire yellows, minutes before Banks would win the game.
Banks explained that he didn't feel the pressure as he grasped his goalscoring chance: "You haven't got time to think about it, I'm just thankful it went in. You just have to pick a spot, hope you get the contact that you want and that's as much as you can do to be honest.
"We've shown when we go down to ten men a couple of times this season that we've got the fire in us, we keep going and it paid off.
"At the end it was about filling the right gaps, trying to get your body in the way and keeping tight as a unit."
The Spireites were certainly hanging on in the closing minutes at Oakwell, but Banks explained that after carrying in the form from the previous week's win his side deserved their result.
Banks said: "The gaffer said after the Port Vale game that we needed to start as we finished that game where we'd looked confident and moved the ball well.
"It took us 15 or 20 minutes to get into the game but it's a derby so that was going to happen and we settled in really well and had plenty of chances - and I think we got the deserved win."
The midfielder paid tribute to the Spireites' attacking talent and the form they're showing to help hoist the club away from danger - though revealed he'd not be able to celebrate his goal with his nearest and dearest.
"All of our attackers - Jay O'Shea in the hole, he gets in some great pockets - are playing well," commented Banks. "Gboly today got two assists, Lee in the box with a great header they all seem to be bouncing off each other quite well.
"I was going to go have a few drinks with my family - but as they're all Barnsley fans I think I might avoid that!"