Burton Albion 0-2 Chesterfield
Chesterfield sealed promotion to League One with victory at a soggy Burton thanks to Jay O'Shea's double.
O'Shea turned home from inside the box seven minutes into the second half from a pass by veteran Ritchie Humphreys.
Eoin Doyle laid on midfielder O'Shea's 79th-minute clincher, allowing the Irishman to poke home from close in.
Sam Hird headed against the bar for the visitors and Gary Roberts curled a free-kick just over, while Lee Bell's tame drive was as close as Burton came.
Chesterfield's win takes them back to top spot in League Two, above title rivals Rochdale on goal difference.
Barring Rochdale winning by a cricket score at Newport next Saturday, Chesterfield will lift the title if they win at home to Fleetwood.
Burton, who have already secured their play-off place, remain fifth.
Burton Albion manager Gary Rowett told BBC Radio Derby:
"They showed that little bit of extra quality than us. That maybe has been the difference between us getting automatic promotion instead of the likes of Chesterfield.
"It stunk of an end of season performance really, if I'm being honest. We had nothing to play for. They had everything to play for.
"I was disappointed with the players. I said: 'Listen, if you think that's enough then you're sadly mistaken because one or two of you looked terrible today'.
"They just didn't look like they had anywhere near enough energy or athleticism. That maybe has altered my thinking for one or two of the play-off games and it'll be their own fault for that."
- 8WeirSubstituted forIsmailat 56'minutes
- 7BellSubstituted forKnowlesat 71'minutes
- 29KeeSubstituted forHemmingsat 56'minutes
- 6CooperSubstituted forHumphreysat 30'minutes
- 17DoyleSubstituted forRichardsat 86'minutes
- 29KearnsSubstituted forGardnerat 20'minutes
- Robert Madley
- Shots on Target