The Super League teams enter the final month of the regular season with all to play for as they fight to stay on the road to the grand final. The two most successful teams of the modern era renew their fierce rivalry as Leeds and St Helens meet at Headingley. The teams have met in four grand finals, and between them have been crowned champions in 13 of the 21 seasons of the Super League. The history books suggest this will be a difficult one to predict, as in their previous 62 meetings, St Helens have won 33 and Leeds 29. Their first meeting this season, on the opening night, ended in a narrow 6-4 victory for St Helens. The League-leading Castleford Tigers are out for revenge against Hull FC. Castleford have been flying high all season at the top of the table, but they have failed to beat Hull in either of their two previous meetings this year. This is the first time this season they have met in Castleford though, where the Tigers are defending a perfect home record, having won ten out of ten matches in front of their own supporters this year. Challenge Cup semi-finalists Salford are at home to Huddersfield, Leigh travel to play Catalans, Wakefield face Warrington and Wigan play Widnes.