Who stood tall and who struggled in the slippery conditions? Find out with our player ratings...
9. Sam Hoskins
Strangely quiet afternoon. Opportunities to run with the ball at his feet were at a premium and once moved to wing-back he had to focus on defensive duties... 6.5
10. Harry Smith
Cambridge defenders just had no answer to him all afternoon. Lovely composed finish to steer Cobblers in front, had a hand in the second and might have had another but for Mitov. His best game for the club... 8
11. Billy Waters
Gave good support to the frontman and did a decent job of holding the ball in United's half... 6.5
12. Chris Lines
Took a while to adjust to the tricky conditions... 6