Then after a couple of goals to Perth early in the second half, South Fremantle asserted its authority again kicking the next nine goals, and 10 of the last 11 of the game to win by 98 points.

Shaw played his best game of the season for the Bulldogs booting five goals from 21 possessions and nine marks while Ryan Cook, Ben Saunders, Blaine Johnson, Steven Edwards, Brendan Verrier and Steven Verrier all kicked two.

Brendan Verrier racked up 31 possessions, Steven Verrier 30, Ashton Hams 30, Haiden Schloithe 26, Adam Guglielmana 23, Shane Hockey 21, Tim Kelly 20 and Matthew Gundry 20 while Josh Branchi was the best big man on the ground with 17 touches and 25 hit outs.

South Fremantle's defence was outstanding led by Blayne Wilson (29 possessions, 12 marks), Josh Pullman (20 disposals, 11 marks) and Marlion Pickett (18 touches).

It was a tough day for Perth kicking 4.14 just six days after booting 4.19 against Subiaco.

Julian Jacobs gathered 31 possessions, Clint Jones 29, Aidan Tropiano 22 and Michael Sinclair 19 while Aaron Zucconi battled hard in defence holding Saunders to three kicks and two goals.

East Perth and West Perth battled for a grand final berth last year in the preliminary final, but on Saturday they were battling over avoiding a 1-4 start to 2016.

And it was a tight tussle in the first half with the Royals leading by just the one-point at the main break. But East Perth then kicked the first nine goals of the second half and 10 of the 11 all up to win by 60 points.

Jonathan Giles and Craig Wulff provided a lively tall and small option in attack each for East Perth and both kicked three goals with Patrick McGinnity also booting two to go with 27 possessions.

Steven Payne also racked up 30 disposals for the Royals in his 99th WAFL appearance while Kane Lucas had 29 possessions, Julian Ameduri 28, Tom Cole 27, Paddy Brophy 26, Luke Partington 23, Nathan Blee 23 and Mitch Fraser 22.

Andrew Strijk overcame a leg injury from last week to rack up 35 possessions in a brave effort for West Perth while Aaron Black continued his outstanding start to 2016 with another 29 disposals and two goals.

Steven Browne also finished with 26 touches for the Falcons, Rohan Kerr 21, Trent Manzone 21 and debutant Mitch Peirce 20.

Claremont had five days to stew over the missed opportunities against Swan Districts last Sunday and the Tigers took that all out on East Fremantle on Saturday.

The Tigers kicked 10 goals without a miss in the first half to set up the eventual win over the Sharks. Nailing nine of 11 shots again in the second half saw Claremont beat an East Fremantle side that had one more scoring shot by 39 points.

Jack Richardson stood up for likely the best game of his short league career with Claremont kicking four goals while Oliver Tate, Darcy Cameron, Beau Maister and Zac Langdon all booted two apiece.

Mitch Andrews dominated the ruck with 17 touches and 35 hit outs while Tom Ledger gathered 28 possessions, Jake Murphy 27, Jye Bolton 24, Jared Hardisty 21 and Ryan Neates 21.

George Hampson kicked four goals for East Fremantle with Brett Peake and Jack Perham adding two each.

Liam Anthony had another 27 possessions and 10 tackles for the Sharks while Jesse Crichton had 22 touches and 13 tackles. Cameron Eardley also compiled 25 disposals, Dion Anthony 26, Jamie McNamara 25, Jayden Schofield 23 and Tim Bristow 22.

ROUND 5 McDONALD'S WAFL RESULTS
LEAGUE
East Perth 14.16 (100) defeated West Perth 6.4 (40)
East Fremantle 11.11 (77) lost to Claremont 19.2 (116)
Perth 4.14 (38) lost to South Fremantle 21.10 (136)

RESERVES
East Perth 14.15 (99) defeated West Perth 12.5 (77)
East Fremantle 11.16 (82) defeated Claremont 11.7 (73)
Perth 9.11 (65) lost to South Fremantle 15.9 (99)

REDiMED COLTS
East Perth 20.19 (139) defeated West Perth 8.5 (53)
East Fremantle 9.7 (61) lost to Claremont 13.14 (92)
Perth 13.12 (90) defeated South Fremantle 9.5 (59)