A late penalty from Johnnie Jackson rescued a point for league leaders Charlton Athletic this afternoon.
It looked like visiting Tranmere Rovers were going to leave the Valley with all three points courtesy of a first half striker from Adam McGurk.
However, a late challenge from Ian Goodison on Yann Kermorgant ten minutes from time resulted in a spot-kick, which captain Jackson duly converted.
The visiting Spireites got themselves on the score-sheet at Hillsborough courtesy of a close range goal from Leon Clarke.
Lee Clark's Huddersfield Town continued their unbeaten league form with a 2-1 win over Stevenage Borough. Gary Roberts put hosts Huddersfield in front shortly before the break, before full-back Scott Laird levelled up proceedings in the 66th minute.
Winger Lee Novak would prove to be the Terriers match-winner, finding the net 15 minutes from time to move his side up to third in the table.
Leyton Orient lifted themselves off the foot of the table with a 3-2 victory away at Scunthorpe United. Kevin Lisbie scored a brace for the O's, while Scott Cuthbert added a third.
United's goals came courtesy of Andy Barcham, who opened and concluded the game's scoring.
Replacing Orient at the bottom are Exeter, who slipped to a 2-0 defeat at Bury thanks to goals from Andy Bishop and Matt Oakley, who put through his own net.
League One results: Bournemouth 1-1 Rochdale; Bury 2-0 Exeter; Carlisle 2-2 Brentford; Charlton 1-1 Tranmere; Colchester 2-2 Yeovil; Huddersfield 2-1 Stevenage; Scunthorpe 2-3 Leyton Orient; Sheff Wed 3-1 Chesterfield; Wycombe 1-1 Walsall.