ADELAIDE'S 73-point win over Gold Coast and Carlton's breakthrough victory over the Western Bulldogs have completed an annual statistical quirk of the home and away season.

SIMPLY THE BETTS Eddie kicks a bag in his 300th

The circle of parity is complete, where every team has lost to the team that precedes it.

Actually, perhaps the oval of parity would be a better descriptor, given the shape of the Sherrin. 

It's an illustration of how even the competition has been this season. Round five isn't over yet and no team is undefeated or winless. 

A TON OF RELIEF Blues end 1051-day drought by cracking the ton

Upsets have defined 2019. Whether it was Brisbane beating the reigning premiers West Coast in the opening round, Fremantle flying to the nation's capital and downing flag fancy Greater Western Sydney on Saturday or Carlton cracking the ton for the first time in 1051 days, the experts have been made to look foolish time and again. 

Good luck with your tips – you'll need it.

Find Trends on Apple Podcasts, Google Podcasts and Spotify