There was a 25-minute delay at Halifax because of a colour clash between Huddersfield and Castleford, but when they did start the Giants, temporary residents at their neighbours' ground, soon made up for lost time.
Two tries from Leroy Cudjoe helped them to a 40-18 victory yesterday that keeps them in touch with Warrington at the top of the Super League. Winger Richard Owen scored two tries for Castleford, who were forced to play in borrowed Halifax shirts.
Wigan's hopes of retaining their title took a blow in Montpellier on Saturday, where Catalan Dragons completed the double over them. Two Sam Tomkins tries kept the champions in touch at half-time, but Darryl Millard's second try set up a 20-12 home win.
Saturday's other game saw Harlequins' winless run stretch to 11 matches, thanks to a 16-30 home defeat by Bradford, despite two tries from Karl Pryce against his first club.
St Helens kept in contention with the leaders with an exhilarating second-half against Leeds. Saints, inspired by half-backs Jonny Lomax and Lee Gaskell, romped to a 42-16 win, but it came at a cost, with James Roby thought to have fractured an eye socket. Leeds' Danny McGuire ended the match limping.
Crusaders were in the game in the first half before being swept away by Warrington. Brett Hodgson scored three tries and eight goals in a 56-16 victory that keeps the Wolves on top.
Stefan Ratchford scored a hat-trick for Salford in their 34-12 win over Wakefield. Trinity's new signings made an impact on their debuts, with a try from Jarrad Hickey and two goals from Gareth Moore.