Leaders Chesterfield extended their advantage at the top of npower League Two to five points but were forced to settle for a point after letting slip a half-time lead in a 1-1 draw at Bury.
Craig Davies put the visitors in front after 20 minutes but Ryan Lowe equalised one minute after the break for the Shakers, who remain in the play-off places. Chesterfield's Deane Smalley was sent off five minutes from time for his second yellow card.
With second-placed Shrewsbury out of action Wycombe had the chance to leapfrog them but they blew it in a dramatic finish at Southend, where Craig Easton's last-gasp strike gave the home side a 3-2 win.
Jon-Paul Pittman had given Wycombe a half-time lead only for Barry Corr and Kane Ferdinand to swing the game Southend's way. A Scott Rendell penalty on 89 minutes appeared to have grabbed the visitors a point before Easton's even later intervention.
Rotherham took full advantage of Wycombe's slip to clamber into an automatic promotion place with a 2-0 win over Accrington Stanley. Omar Daley and Adam Le Fondre scored second-half goals.
Oxford missed their chance to move into the play-off places after grinding out a goalless draw at Stevenage, while Torquay remain 10th after Chris Robertson's 56th-minute header earned a 1-0 win over struggling Burton.
In a six-goal thriller at Sixfields Morecambe hit back from behind three times to secure a 3-3 draw against Northampton. Leon McKenzie's 71st-minute penalty looked to have won it before Paul Mullin hit the Shrimpers' equaliser two minutes from time.
In another entertaining mid-table tussle, improving Lincoln fought back from 2-0 down to draw at Aldershot. Josh O'Keefe and Ashley Grimes hit late goals to cancel out strikes from Anthony Charles and Alex Rodman.
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