Darryl Duffy's winner completed a memorable comeback as Cheltenham came from two down to win at Northampton.
The Cobblers were 2-0 up within 14 minutes after Adebayo Akinfenwa struck and Robins defender Billy Jones turned the ball past his own keeper.
But after Darren Carter's close-range effort reduced the arrears, the visitors were level when Chris Zebroski headed in from Jones' cross.
The turnaround was complete when Duffy fired in after being set up by Carter.
VIEW FROM THE DRESSING ROOM
Northampton Town manager Aidy Boothroyd told BBC Radio Northampton:
"We started very, very well. We created lots of chances and we were on the front foot. At the back end of the half, we stopped doing what gave us all that success, and conceded three really bad goals.
"We're threatening that we might do well, but to lose three, win three, lose three, win three is not going to get you in the play-offs.
"We shot ourselves three times in the foot."
Cheltenham Town manager Mark Yates told BBC Radio Gloucestershire:
"We started awfully and I thought we'd picked the wrong team, but credit to the players they stuck in there and turned it around.
"They suddenly remembered what we talked about when it came to competing with Akinfenwa, and all of a sudden we looked a different side.
"The second half was tough. They play to their strengths and are very good at what they do.
"I thought Zebroski needed to come in and give a good performance, which I think he did. We caused them problems and it was good to see us chipping in with goals."
Northampton Town 21 Nicholls 03 Widdowson Booked (East - 81' ) 05 Langmead 12 Tozer 30 Carlisle 07 Demontagnac Booked (Robinson - 63' ) 08 Harding 11 Hackett 22 Hornby (Platt - 64' ) 28 Huws 10 Akinfenwa Substitutes 13 Snedker 06 Charles 23 East 09 Platt 15 Mukendi 17 Robinson 19 Moult Cheltenham Town 01 Brown 02 Lowe Booked 03 Jones 06 Elliott 15 Bennett 22 Jombati 04 Carter 16 Penn 18 Taylor (Pack - 90' ) 14 Harrad (Mohamed - 72' ) 26 Zebroski (Duffy - 72' ) Substitutes 12 Roberts 07 Pack 08 Deering 11 McGlashan 20 D'Ath 09 Duffy 23 Mohamed
Ref: Andy Davies