The Spireites reserves suffered their first Final Third Development League loss of the campaign as they were swept aside by the wind and Hartlepool United in a 2-0 defeat.
Monday's match at Staveley MWFC's Inkersall Road was decided in the second half by first a Billy Paynter flick from a freekick before Scott Fenwick scored from the spot after a Laurence Maguire handball.
Ritchie Humphreys again took charge of the Chesterfield second string and gave is verdict on a difficult afternoon for his young side.
He said: "In very tricky conditions with the blustery winds and a heavy pitch - though it's the same for both sides - set pieces were the difference, as happens at every level of the game from the reserves to World Cup finals.
"Some of the Hartlepool players have a lot of league experience while we had a very young team out and I was pleased with their attitudes and application.
"You can always ask for more quality in areas of the pitch but they did try and do things correctly today. It's a learning experience for them tactically and technically but what we've also got to get into them is that they've got to win football matches.
The Spireites reserves were made up mainly of youth team players and younger pros, with Humphreys saying that the conditions are crucial to his players' progression.
"To go on in your career you are going to have to be able to adapt to conditions," he said. "You're not always going to have everything your own way, everyone has to learn and it's all part of the development.
"It's about game time, the young players stepping out of the youth team and playing against experienced players and grown men. It's a great challenge and a great learning curve."