Ben Barba took his tally to 28 for the season with his double
St Helens ended the Super League season as they began it seven months earlier with a comprehensive home win over Castleford Tigers.
It was not as emphatic as the 46-6 rout at the Totally Wicked Stadium in February but the 26-0 margin was comfortable enough for the leaders, who warmed up nicely for their semi-final against Warrington next Thursday.
Forward Matty Lees scored his first try for the club and full-back Ben Barba, whose end-of-season departure was confirmed this week, touched down twice to take his final tally in the league campaign to 28.
After winning their previous five matches, the Tigers had high hopes of gaining a first away win over Saints in the summer era.
But coach Daryl Powell will be concerned over their defensive lapses as well as the lack of a cutting edge in attack as they were nilled for the first time for more than three years.
Both sides were under-strength with a eye on next week's semi-finals and they could yet meet in the Grand Final in a fortnight's time, although Castleford will have to find some improvement when they go to Wigan.
