Matter of Stats

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2019 - Team Ratings After Round 25

Neither MoSSBODS nor MoSHBODS re-ranked any team this week, leaving the two of them with the following rankings of the Preliminary Finalists:

  • Richmond: 1st on both

  • Geelong: 3rd on MoSSBODS and 2nd on MoSHBODS

  • Collingwood: 4th on MoSSBODS and 3rd on MoSHBODS

  • GWS: 5th on MoSSBODS and 6th on MoSHBODS

The two Systems still differ then in their rankings of only four teams by more than two spots:

  • Brisbane Lions: 2nd on MoSSBODS and 8th on MoSHBODS

  • Port Adelaide: 7th on MoSSBODS and 10th on MoSHBODS

  • Western Bulldogs: 8th on MoSSBODS and 4th on MoSHBODS

  • Sydney: 14th on MoSSBODS and 11th on MoSHBODS

On MoSSBODS, 1st and 17th are still separated by only 8.1 Scoring Shots (and 2nd and 7th now by only 1.6 Scoring Shots), and on MoSHBODS 2nd and 10th are separated by only 10.3 points.

The underlying Combined MoSSBODS and MoSHBODS Team Ratings remain extremely highly correlated (+0.9748).

On the Component Ratings, we have now as Top 3s:

Offence

MoSSBODS: Lions, Dogs, Tigers

MoSHBODS: Dogs, Lions, Tigers

Defence

MoSSBODS: Tigers, Pies, Cats

MoSHBODS: Tigers, Pies, Cats

The correlation between the underlying offensive ratings of the two Systems is +0.9762, and between the underlying defensive ratings +0.9745.

On MoSSBODS, 7 teams are now rated positively on offence and defence (no change), 8 are rated negatively on both (no change), one is rated positively on offence but negatively on defence (no change), and 2 are rated negatively on offence but positively on defence (no change).

Only three teams are in different quadrants under the two Systems:

  • Collingwood (negative offence and positive defence on MoSSBODS, positive offence and defence on MoSHBODS)

  • Western Bulldogs (positive offence and negative defence on MoSSBODS, positive offence and defence on MoSHBODS)

  • Sydney (negative offence and defence on MoSSBODS, negative offence and positive defence on MoSHBODS)

The following animation shows the path that each team has followed, at the end of each round, to get to its current MoSSBODS rating.

ChiPS made no changes to its team rankings this week, and MARS’ only change was to switch Collingwood into 3rd and drop West Coast to 4th.

That’s left the two of them disagreeing still about the rankings of only Sydney and Fremantle by more than two places.

The correlation between ChiPS and MARS Ratings now stands at +0.9727.

Looking across the rankings of all four Systems, and ordering the teams based on their average ranking, we find that:

  • Richmond still has the lowest average ranking. It’s 1st on MoSSBODS, MoSHBODS, and ChiPS, and 2nd on MARS

  • Four teams have rankings across the four Systems that span six places (Brisbane Lions, Western Bulldogs, Sydney, and St Kilda)

  • West Coast and Essendon have rankings across the four Systems that span five places

No other team is ranked more than three places differently across the four Systems.

Gold Coast remains the only team ranked identically by all four Systems, but nine other teams’ rankings span a range of only 1 or 2 places.