Goals by David Bridges, Stephen Smith and Fola Onibuje gave Cambridge victory over Chester as the home team dominated from start to finish.
Cambridge won a corner inside 20 seconds and missing four good chances in the first five minutes.
Bridges opened the scoring when keeper Chris MacKenzie parried Richie Hanlon's shot straight to him.
Smith added a second before top scorer Onibuje marked his return from a ban with his sixth goal in five games.
Cambridge Utd: Howie, Morrison, Duncan, Peters, Okai (Angel 88), Bridges, Smith, Hanlon, Quinton, Westcarr (Atkins 86), Nolan (Onibuje 86). Subs Not Used: Behcet, Davies.
Goals: Bridges 65, Smith 79, Onibuje 90.
Chester: MacKenzie, Bertos, Bolland, Hessey, El Kholti, Rutherford (McNiven 69), Walker, Vaughan, Dove, Richardson, Curle (Davies 79). Subs Not Used: Brookfield, Dimech, Curtis.
Ref: G Sutton (Lincolnshire).