Rotherham Metro, 11-10 winners against Croydon on day one, beat Castleford 16-13 to make it four victories from four games in Division 3.
In an exciting south coast derby, Southampton edged out Worthing 12-10. Powerful shooting by Dan Shunn and Jacob Graham gave Southampton the edge after the sides were locked at 9-9 towards the end of the third period.