The Spireites lost the battle on the day to champions Bristol City but won the play-off war as results elsewhere confirmed the side's top-six finish.Goals in either half from Keiran Agard and Aden Flint gave the Robins a 2-0 win, but it was a day of celebration at a sold-out Proact Stadium with the play-off mission finally accomplished.
Assistant manager Leam Richardson told Spireites Player that desite the achievement his side were not entirely happy with their day's work.
"We're a bit subdued, a bit flat," said Richardson. "Because you want to win games. With the standards we feel the lads have got we wanted to try and go unbeaten all the way through until the end of the season - and then hopefully onto Wembley.
"I thought it was a great game, a very tactical and astute game through many periods. The goals were quite sloppy on our part but let's give Bristol City loads of complements, they played well and you can see why they're champions."
Rochdale's home defeat to MK Dons rubber-stamped Chesterfield's play-off spot, and Richardson expressed respect for Keith Hill's side.
He said: "It's been a number of weeks now, you have to give fair credit to Rochdale as they've had a fantastic season trying to chase us down.
"We've made it over the line but we have to get back up and running quickly to tackle the next challenge ahead."
The Spireites' 46th League One match of the season takes them to Bramall Lane next Sunday and though the pressure may now be lessened Richardson confirmed that his squad are licking their lips at the challenge.
"We're playing Sheffield United away," he said. "What does that tell you? The fans want to play there, we've looked forward to it all season. I think many people thought it would have some kind of relevance to what happens.
"It will be a very good game. They're a great team, with great management and we'll take a lot of fans and aim to finish the natural season very well."