Matthew Dinsdale, Mark Matthews and Jeff Shattler each had a pair of goals, while Curtis Knight, Ryan Keenan and Jeremy Thompson added singles for the Rush (2-1).
Jordan McBride and Mitch Jones both had hat tricks to lead the Warriors (1-4), Brandon Goodwin, Owen Barker, Colton Porter and Tony Malcom rounded out the offence.
Evan Kirk made 40 saves in the victory for Saskatchewan. Aaron Bold and Eric Penney combined to make 35 stops in a losing effort for Vancouver.
The Rush capitalized on all three chances they had on the power play. The Warriors went 1 for 4 with the man advantage.