Tyler Pace scored four times and tacked on three assists while Riley Loewen had a pair of goals for the Roughnecks (5-4), who got singles from Dan MacRae, Dan Taylor and Mitch Wilde.
Robert Church and Jeff Shattler paced the Rush (3-4) offence with a hat trick each while Ryan Keenan and Curtis Knight both scored twice. Mark Matthews and Ben McIntosh rounded out the attack.
Christian Del Bianco made 39 saves for the win as Evan Kirk stopped 27-of-42 shots in defeat.
Both teams are back in action next Saturday as the Rush are in Vancouver to take on the Warriors, while the Roughnecks head east to meet the Buffalo Bandits.
(The Canadian Press)