York needed a late try from Sinead Peach to win at Huddersfield after an impressive comeback from the Giants.
It looked like it was going to be a straightforward afternoon for the champions when they led 18-4 at the break through tries from Tamzin Renouf, Zoe Hornby and Jas Bell, with Amelia Brown responding for the Giants.
However, Huddersfield cut York’s lead with further tries from Bethan Oates and Fran Copley, before Brown got her second to give the hosts the lead.
But with three minutes left, Peach went over to put Valkyrie back in front, with Rhiannion Marshall adding the extras.
It was more straightforward for Leeds, despite them falling behind to Barrow when Vanessa Temple scored in the first minute.
After that it was one-way traffic for the third-placed Rhinos as Ebony Stead ran in four tries and Sophie Nuttall scored a hat-trick.
Evie Cousins, Frankie Blakey, Ella Donnelly, Connie Boyd and Liv Whitehead also crossed for dominant Leeds.
