Three second half goals condemned the Spireites to a 3-0 Doncaster Rovers loss at the Keepmoat as they lost their third straight game.A goal-less first half in which both sides created chances gave way to a second in which Rovers quickly grasped the nettle, winning a penalty after a Dan Jones handball. Tommy Lee saved Nathan Tyson's spot kick, but the Doncaster striker was able to stab home the rebound.
Within ten minutes the lead was doubled as marksman Andy Williams finished clinically in the box for Rovers after a break down the left, before substitute Cameron Stewart made it three in extra time, pouncing on an Ian Evatt mistake.
The Spireites offered the first threat as they looked to get back to winning ways. Sam Hird played the ball across the face of goal which Lee Novak stroked home, but the effort was ruled out for offside.
It was clear from the off that Chesterfield were looking the exploit the left-hand side of Doncaster’s defence, and they went close again minutes later.
Jay O’Shea had the beating of Cedric Evina before he swung the ball in. Sylvan Ebanks-Blake took it down, but couldn’t get it out of his feet as Rovers cleared their lines.
Doncaster soon grew into the game after a cautious opening quarter of an hour. Felipe Mattioni saw a shot blocked, with Williams sending the rebound well over.
Yet they should maybe have been 1-0 down seconds later. The Spireites broke forward with Novak expertly beating the offside trap after an inch-perfect through ball from Sam Morsy. Novak pulled the ball back to Dan Gardner on the edge of the area, but his low shot flashed wide.
The game was now springing into life with chances at both ends. This time Williams was found in the area following a training ground short free-kick, but he again sent his shot inches over.
The home side were being limited to long range efforts as James Coppinger went close, while Williams saw an impressive bicycle kick well saved by Lee after some neat passing play before Evina curled a strong effort wide.
However, the Spireites missed a gilt-edged chance to take the lead five minutes before half time. O’Shea broke down the right and managed to manoeuvre round keeper Thorsten Stuckmann. He pulled the ball back to Novak, but his low effort went just wide of a near-open goal.
The second half began veraciously with both sides going close. Ebanks-Blake saw a shot blocked causing all sorts of problems, while at the other end Lee made a fantastic save from a Williams effort, before Mattioni shot wide when Williams was free in the centre.
It was soon all Donny as they put the pressure on. Tyson made the best of a Gardner mistake by forcing a fantastic flying save, while Evina flashed the rebound across goal and wide.
Evatt then put a dangerous Connor Grant ball behind with some heroic defending preventing a certain goal.
The Spireites were now camped inside their own half and Rovers looked to break the deadlock, only some inspired defending kept them at bay.
However, the game changed when the home side were awarded a controversial penalty; Jones adjudged to have handled a Mattioni cross just inside the area.
Tyson saw his spot kick saved by Lee's legs as he went straight down the middle, but he put away the rebound to the give them the lead.
Dean Saunders reacted by making three changes with Rai Simons, Ollie Banks and Gboly Ariyibi coming on for Gardner, Herd and Novak respectively, and they nearly paid instant dividends as Simons set up Ebanks-Blake, but his low effort was deflected to safety.
Banks then came the closest to equalising as he drove forward and sent a powerful strike just wide of the post with the 'keeper beaten.
However, the hosts doubled their lead with 20 minutes to go. Tyson broke into down the left and played the perfect ball across for Williams who tucked the ball into the corner out of Lee’s reach.
It was harsh on Chesterfield as they went in search of an equaliser and they immediately went after a goal that would have swung it back in their favour. Ebanks-Blake went very close from an Ariyibi cross but Stuckmann was ultimately untroubled.
The visitors put the hosts under pressure late as they looked for a late goal, but the defeat were sealed in added time when Evatt gave the ball away to substitute Stewart who slotted past Lee to round-off a miserable night for the Spireites.
Doncaster Rovers: Stuckmann (gk) - Evina, Butler, Williams, Tyson (Stewart 77'), Taylor-Sinclair, Grant, Coppinger (c), Middleton, Mattioni, Alcock
Subs not used: Wellens, McKay, Marosi, Whitehouse, Davies, M'Buti
Chesterfield: Lee (gk) - Jones, Evatt, Wood, Hird - Morsy (c), Herd (Banks 63'), O'Shea, Gardner (Simons 63') - Novak (Ariyibi 63'), Ebanks-Blake
Subs not used: Cairns, O'Neil, Raglan, Talbot
Doncaster Rovers: Tyson 62', Williams 70', Stewart 90+2'
Attendance: 5,521 (633 away supporters)