Match ends, Cheltenham Town 1, Chesterfield 4.
League leaders Chesterfield scored four goals in just seven minutes in the first half to dispose of Cheltenham.
Dan Gardner showed impressive technique to finish after a misjudgement by Robins midfielder Sam Deering.
Eoin Doyle made it two when he ran on to Ollie Banks' pass, before Banks curled in a right-foot effort, and Liam Cooper glanced home from a corner.
Byron Harrison scored a second-half consolation for Cheltenham after the visitors failed to clear a corner.
On a difficult pitch the Spireites were in control from the start as they looked to put last Saturday's unexpected defeat at struggling Wycombe behind them.
But few could have predicted the manner in which Paul Cook's side would effectively end the match as a competitive spectacle between the 22nd minute and the 29th.
The visitors improved in the second-half, but Chesterfield goalkeeper Tommy Lee made two outstanding saves to snuff out any prospect of an unlikely comeback, while both Gary Roberts and Sam Togwell failed to take excellent chances to score a fifth goal for the visitors.
Cheltenham Town manager Mark Yates told BBC Radio Gloucestershire:
"Coming off the back of Saturday's result (1-0 win over Newport) we were optimistic and confident.
"For 20 minutes we were in the game and created two or three chances.
"The first goal's come from a corner and the seven or eight minutes that followed were very influential.
"It's massively disappointing and it's difficult to take."
- 8DeeringSubstituted forTaylorat 85'minutes
- 9HarrisonSubstituted forCuretonat 75'minutes
- 21VincentSubstituted forKotwicaat 75'minutes
- 26GardnerSubstituted forHirdat 65'minutes
- 2BanksSubstituted forGnanduilletat 56'minutes
- 12RyanSubstituted forTogwellat 85'minutes
- Graham Salisbury
- Shots on Target
Second Half ends, Cheltenham Town 1, Chesterfield 4.
Foul by Matthew Richards (Cheltenham Town).
Sam Morsy (Chesterfield) wins a free kick in the defensive half.
Jason Taylor (Cheltenham Town) wins a free kick in the attacking half.
Foul by Sam Morsy (Chesterfield).
Corner, Cheltenham Town. Conceded by Thomas Lee.
Attempt saved. Terry Gornell (Cheltenham Town) right footed shot from outside the box is saved in the centre of the goal.
Substitution, Cheltenham Town. Jason Taylor replaces Sam Deering.
Substitution, Chesterfield. Sam Togwell replaces Jimmy Ryan.
Zack Kotwica (Cheltenham Town) wins a free kick in the defensive half.
Foul by Tendayi Darikwa (Chesterfield).
Attempt missed. Armand Gnanduillet (Chesterfield) right footed shot from outside the box is close, but misses to the left.
Jermaine McGlashan (Cheltenham Town) wins a free kick in the defensive half.
Foul by Jimmy Ryan (Chesterfield).
Attempt missed. Gary Roberts (Chesterfield) right footed shot from the left side of the box is close, but misses to the right.
Substitution, Cheltenham Town. Jamie Cureton replaces Byron Harrison.
Substitution, Cheltenham Town. Zack Kotwica replaces Ashley Vincent.
Attempt missed. Ashley Vincent (Cheltenham Town) right footed shot from outside the box is close, but misses to the right.
Ashley Vincent (Cheltenham Town) wins a free kick in the defensive half.