Matt Elliott bagged six for Coventry, but Newport were always in charge after building a 7-3 lead in the second period.
Sheffield Dolphins beat Leeds 15-7 in the Yorkshire derby, including goals by Miles Ralston (4), Arshia Keyghobadi (3), Corran Bradley (2), Connor Charles (2) and Ethan Carpenter (2).
Chester scored first against the British Army but ended the second quarter 7-1 in arrears. The Army eventually won 13-9.
Photo (Trevor Hyde): Newport goalie Alex James saves a penalty against Coventry today.