There was a close range hat-trick from Jonson Clarke-Harris, two goals for man-of-the-match Sammie Szmodics and milestone goals for substitutes Mo Eisa and Idris Kanu.
Joe Ward was involved in four of the first five goals as Posh turned the heat on League One leaders Hull City.
Ratings key: 10-Brilliant, 9-Outstanding, 8-Very Good, 7-Good, 6-Okay, 5-Poor, 4-Dreadful
Ratings key: 10-Brilliant, 9-Outstanding, 8-Very Good, 7-Good, 6-Okay, 5-Poor, 4-Dreadful
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