2021 - Team Ratings After Round 9

The Dogs hung on to top spot on both Systems this week, while Melbourne leap-frogged the Cats on MoSSBODS to leave both Systems now with an identical Top 8.

The big climbers on MoSSBODS were St Kilda (up 3), while the big sliders were West Coast and Essendon (both down 2). On MoSHBODS, Sydney were the only team to move multiple places, they climbing two spots into 9th.

The correlation between MoSSBODS and MoSHBODS Combined Ratings now stands at +0.9979, and the Rating gap between 1st and 8th stands at 5.7 Scoring Shots on MoSSBODS (down 0.1 Scoring Shots), and 21.2 Points on MoSHBODS (down 0.5 points).

On the Component Ratings, on Offence both Systems now have Top 3s of Dogs, Lions, and Blues, while on Defence they both now have Top 3s of Dees, Cats, and Dogs.

On MoSSBODS, 6 teams are now rated positively on offence and defence (no change), 6 are rated negatively on both (no change), 2 are rated positively on offence but negatively on defence (down 1), and 4 are rated negatively on offence but positively on defence (up 1). The correlation between the teams’ MoSSBODS offensive and defensive Ratings now stands at +0.659, which is up a little on last week’s number.

In the animation below, we can see the path that each team has taken to arrive at its current Rating.

And, finally, to MARS, which re-ranked 9 teams this week, including elevating Brisbane Lions from 5th into 2nd, and demoting Port Adelaide from 2nd into 5th, and Collingwood from 12th into 14th.

No other teams moved by more than a single spot.

With GWS now Rated at 999.1, MARS still has eight teams rated as better-than-average, with six more Rated 990 or above.

The Rating gap between first and last now stands at just under 61 Rating Points. By comparison, at the same point last year the range was only 49.3 Rating Points.

The gap between 1st and 8th is just over 22 Rating Points, which equates to roughly 16 to 17 points at a neutral venue. 1st and 7th, though, are separated by only 10.5 Rating Points.

Looking across the rankings of all three Systems and ordering the teams based on the current competition ladder, we find the highest differences for Carlton where Rating System rankings are relatively higher than Ladder position. No team has a significantly lower ranking on two or more of the Systems compared to their ladder position.

MARS continues to provide the most outlying rankings of the three Systems, it having the outright most-extreme ranking now for 10 of the teams.

By comparison, MoSSBODS has the outright most-extreme ranking for only two teams, and MoSHBODS has it for three.

MoSSBODS and MoSHBODS now agree about the ranking of 14 teams, MoSSBODS and MARS about the ranking of seven teams, and MoSHBODS and MARS about the ranking of five teams.

Lastly, if we consider the range of rankings that the three Systems have attached to each team, we find that Carlton and West Coast (they’re back!) have the widest range of rankings, while 14 teams have rankings that differ by no more than 2 spots, including Adelaide, Collingwood, Gold Coast, Hawthorn, and North Melbourne, for which all three Systems have the same ranking.