Cambridge eased to victory over Gravesend at the Abbey Stadium.
Jimmy Quinn's side grabed their first goal two minutes into first-half injury time when Michael Gash drilled a right-footed shot home from 20 yards.
The second goal came in the 46th minute courtesy of an 18-yard strike from midfielder Courtney Pitt.
Gravesend's best chance came via a Charlie MacDonald shot in the 52nd minute before David Bridges's cool finish from the edge of the box.
Cambridge Utd: Crichton, Bloomer, Duncan, Morrison, Jaszczun (Wolleaston 87), Bridges, Hanlon, Brown, Pitt, Gash (Carey-Bertram 77), Robbie Simpson (Richardson 34).
Subs Not Used: Quinton, Marum.
Booked: Bridges, Duncan.
Goals: Gash 45, Pitt 47, Bridges 73.
Gravesend: Cronin, Ricketts, Hawkins, Ross Smith, Opinel, Slatter (Purcell 54), Long (DeBolla 54), Quinn, Keeling, MacDonald, Sodje (Ekoku 54).
Subs Not Used: Mott, Ohakam.
Ref: R Fletcher (Derbyshire).