Substitute Jordan Bowery came to Chesterfield's rescue as the League Two leaders snatched a 2-2 draw against lowly Bradford.
The 19-year-old striker came off the bench to level deep into injury time with his first league goal for the club to deny the Bantams victory at the b2net Stadium.
Danny Whitaker had fired the home side into an 11th-minute lead, but Dave Syres levelled within seconds. James Hanson put Bradford 2-1 ahead seven minutes after the restart, and he looked to have clinched the points for the visitors until Bowery finished from close range three minutes into stoppage time.
Rotherham climbed into the top three after a resounding 4-0 home win over bottom-of-the-table Stockport. The game was effectively over by half-time after debutant Aaron Brown's own goal, Ryan Taylor and Adam Le Fondre put the Millers 3-0 up, and Taylor's second 12 minutes after the break cemented the victory.
Giillingham, who started the day in ninth, hauled themselves into the play-off places with a 2-1 home win over Aldershot. Cody McDonald's double, the second of them in the final minute of normal time, secured all three points, and Alex Rodman's fine injury-time strike could not prevent a first defeat for new Shots manager Dean Holdsworth.
Mid-table Southend denied Barnet the chance to lift themselves out of the bottom two with a 2-0 victory at Underhill. Anthony Grant gave the visitors a 25th-minute lead and Barry Corr made sure with a second with 67 minutes gone.
Lincoln left it late to stretch Port Vale's winless run under Jim Gannon to five games. Ashley Grimes struck four minutes from time to further dent Vale's promotion hopes.
Oxford keeper Ryan Clark ensured his side emerged from their clash with Cheltenham with something to show for their efforts after a late penalty save.
Clark kept out Wes Thomas' spot-kick to deny the visitors victory after the striker had fired the visitors into a 25th-minute lead.
Tom Craddock equalised within eight minutes and both sides had goals ruled out before the Oxford keeper's late heroics.
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