Croydon cruised into a 5-nil lead against Castleford before winning 9-6; Charles Roberts collected another five goals for Southampton, who went from 3-2 down to 6-2 against Cambridge in the third period en route to a 9-4 victory.
Tim Chambers (8) and Omiros Pantazis (6) fired Otter to a 24-6 win against bottom team Cheltenham Spartans.