Saxon Earley has got a second for Plymouth and they retake the lead at Oxford. 2-1 there now.
Conor Hourihane has equalised for Derby at home to 10-man Lincoln. 1-1 at Pride Park.
Barnsley have a third through Adam Phillips to lead 3-1 at Port Vale.
And a fourth for Bolton with Eoin Toal sealing the points, if they weren't already, against Milton Keynes.
Cheltenham are trying to pull clear of the bottom four.
Elliot Bonds put them ahead at Cambridge just after the break but Joe Ironside has scored a penalty to quickly bring the home side level.