Gold Coast failed to build on last week’s victory over Canberra, instead falling to a 22-12 defeat to North Queensland.
The Cowboys stormed into a 22-0 interval lead with tries from Willie Tonga, Jonathan Thurston, Gavin Cooper and Matt Bowen.
The Titans re-grouped and grabbed scores from Steve Michaels and Esikeli Tonga, but it wasn’t enough.
Two second half scores from powerhouse forward Simon Dwyer helped Wests Tigers inflict a 30-6 savaging on hapless South Sydney.
A wonderful solo score from Benji Marshall went with a Wade McKinnon effort to help the Tigers into a 12-6 half time lead.
Mitch Brown crossed before the influential Dwyer raced over for a brace.
The New Zealand Warriors overcame an out-of-sorts Sydney Roosters outfit in Auckland.
Despite taking the lead through Sean Kenny-Dowall, the Roosters conceded tries from Krisnan Inu and Lewis Brown, leaving them trailing 10-6 at the break.
Lance Hohaia and Mitchell Pearace traded scores before hooker Sean Berrigan scooted over to seal the win for the home side.
A last minute score from Manly winger Michael Oldfield broke Cronulla hearts and helped his side to a 19-13 victory.
The Sharks lead 7-0 at the break courtesy of a Matthew Wright score midway through the half.
Scores from Keiran Foran and George Rose together with a Daly Cherry-Evans field goal locked the scores at 13-13 before Oldfield sealed the win with his heroics at the death.
Penrith winger David Simmons grabbed a hat-trick as Penrith smashed a poor Canberra side 36-10.
Simmons’ first half double was added to by Travis Burns to establish a commanding 18-4 lead at the interval.
Despite an early score from Daniel Vidot, the Raiders went on to concede further tries to Simmons, Michael Gordon and Petero Civoniceva.
Parramatta coach Stephen Kearney’s return to his old club Melbourne wasn’t a happy one as his side went down 38-0.
The Storm raced into a 22-0 lead at the interval courtesy of scores from Cooper Cronk, Adam Blair and Beau Champion (2).
The tries kept coming for home side after the break with Anthony Quinn, Matt Duffie and Billy Slater all crossing.
St George overcame the wet conditions to inflict a 25-6 defeat on Canterbury at the Sydney Cricket Ground.
Matt Cooper’s first half try helped the premiers into a 9-0 lead at the break, aided by some pinpoint kicking by Jamie Soward.
Cooper and Corey Payne traded scores after the interval before Darius Boyd and Mark Gasnier weighed in with a try each to seal the victory.
Brisbane continued their good form with a 17-6 victory over Newcastle at Suncorp Stadium.
Jack Reed and Cory Paterson traded scores for the Broncos and Knights respectively but it was the home side that led at the break 8-6.
Gerard Beale and Reed crossed for the Broncos before the home side made sure of the win thanks to a field goal from Darren Lockyer.