Captain Jamie Grimes was the hero with two goals to help bring up 100 in the league this season for the Spireites. The win makes amends for a heartbreaking playoff final defeat on penalties to Notts County last season at Wembley.
Chesterfield secured their return to the Football League after six seasons in the National League in style with a 3-0 win over Boreham Wood on Saturday.
Centre-back Jamie Grimes was the unlikely hero as he scored twice, either side of Liam Mandeville’s strike just 25 seconds into the second half.
Promotion makes amends for the heartbreak of twice losing the lead late on at Wembley last season for the Spireites.
Paul Cook’s men have been destined to go up ever since a stunning start where they won 17 of their opening 20 games of the season to streak clear at the top of the table.
Victory took Chesterfield 21 points clear of second-placed Barnet, who have just six games of the season to go.