Posh had the better chances but hit the target with only one of their 17 shots and they succumbed to a killer blow in the final minute of normal time when Mitch Pinnock’s audacious volley beat Nicholas Bilokapic. Here are our player ratings from a famous Cobblers victory, their first over Peterborough in 17 years...
9. Sam Hoskins
Not a lot to shout about in terms of shots and attacking play but worked hard and pressed well again, forcing a couple of mistakes from Peterborough's defenders. Inches away from reaching Pinnock's cutback late on... 7.5 Photo: Pete Norton
10. Kieron Bowie
A huge shift from the youngster, who was full of running and endeavour. As threatening as anyone in claret, forcing a decent first half stop from Bilokapic and having a couple of second half effort blocked. He left it all out there and eventually ran himself into the ground... 8 Photo: Pete Norton
11. Tyreece Simpson
There was no shortage of effort from the striker but he struggled to get into the game and was effectively kept away from goal by Peterborough. Needs more bodies around him at times... 7 Photo: Pete Norton
12. Louis Appéré
He did well off the bench in the week and was good again here, giving Town a bit more energy up top... 7 Photo: Pete Norton