The Bradford Bulldogs went down 9-6 at Grimsby on Saturday night.
Aaron Dad hit a hat-trick for the Bulldogs, while Josh Stockton struck a brace and Matt Viney scored the other.
The Bulldogs are next in action on Sunday night against the Telford Titans. Face-off is at 5.15pm, with admission £5 for adults (under-16s free with one paying adult).
The under-12s and under-14s kicked off their season at home to Grimsby.
The under-12s lost 9-2 while the under-14s made a positive start by winning 9-2.
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