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Both don't take into account home town advantage.

And Mark I has now placed Freo above Carlton once again a week after they lost at home to Carlton. Freo lost this week and Carlton won.

Are you sure this isn't Roby-lite?
Historical data? And performances during the year leading up to the match I assume. Despite losing each week, Fremantle have come close a couple of times.
 
Then why is GWS on top?

The only team GWS has beaten away from home is St Kilda. They've lost to mediocre Melbourne and Sydney. The Grand Final last time I checked wasn't played at Spotless.
They flogged the Hawks, who are a highly rated team. Sydney and Adelaide were both expected to win by more.

Why so quick to criticise though? GWS are an up and coming flag threat.
 
They flogged the Hawks, who are a highly rated team. Sydney and Adelaide were both expected to win by more.

Why so quick to criticise though? GWS are an up and coming flag threat.
It has become a recurring theme on BF, away from a teams board zero credit is given to anyone but your own team.

The place has become infected with worse trolls than what live under the old bridges.
 
They flogged the Hawks, who are a highly rated team. Sydney and Adelaide were both expected to win by more.

Why so quick to criticise though? GWS are an up and coming flag threat.
Hawthorn were rated as the 7th best team by Mark 1 and the third by Mark 2. So Mark 1 didn't rate the Hawks and Mark 2 rated them but not enough to explain why it would automatically boost GWS above teams that have recent beat them, such as Sydney.

Hype and the aura of Hawthorn puts GWS at 1. Statistical results shouldn't.
 

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Hawthorn were rated as the 7th best team by Mark 1 and the third by Mark 2. So Mark 1 didn't rate the Hawks and Mark 2 rated them but not enough to explain why it would automatically boost GWS above teams that have recent beat them, such as Sydney.

Hype and the aura of Hawthorn puts GWS at 1. Statistical results shouldn't.
Fair enough. The teams above them didn't overly impress though, barring Geelong.
 
Both don't take into account home town advantage.

And Mark I has now placed Freo above Carlton once again a week after they lost at home to Carlton. Freo lost this week and Carlton won.

Are you sure this isn't Roby-lite?

Home advantage (by state only) is factored in, although I think the squiggle factors it more.

A moderate away loss to Adelaide rates as a much stronger result than a small win against Essendon. Adelaide's rating went down when they beat Fremantle by less than expected. Carlton's result against Essendon was par for a team not quite as weak as Essendon.

Similarly, Sydney's small win against Brisbane was a very poor result for a strong team, and Sydney's rating went down as Brisbane's went up.
 
Mark II results, ladder and predictions

North Melbourne v Western Bulldogs +1
Melbourne +20 v St Kilda
Adelaide +50 v Fremantle
GWS v Hawthorn +3
Richmond +3 v Port
Geelong +35 v Gold Coast
Brisbane v Sydney +38
Carlton +8 v Essendon
West Coast +38 v Collingwood

Damn, just missed on North and GWS. 5/9. Apparently Port aren't actually as rubbish as Richmond.

1. GWS +24.3 (+7, wow!)
2. Sydney +23.5 (-1)
3. Geelong +22.7 (+3)
4. Adelaide +15.9 (-2)
5. Western Bulldogs +14.2 (-1)
6. North Melbourne +13.3 (-1)
7. West Coast 12.7
8. Hawthorn 12 (-5)
9. Port Adelaide -2.2 (+1)
10. Melbourne -7.3 (-1)
11. St Kilda -11.7 (+5)
12. Brisbane -17.4 (+3)
13. Fremantle -18.3 (+1)
14. Richmond -21.2 (-3)
15. Collingwood -21.4 (-2)
16. Gold Coast -22.1 (-4)
17. Carlton -29.8
18. Essendon -39.8

Richmond v Hawthorn +33
Collingwood +8 v Carlton
Geelong +19 v West Coast
Sydney +68 v Essendon
Gold Coast v Melbourne +9
Western Bulldogs +4 v Adelaide
Fremantle v GWS +31
St Kilda v North Melbourne +25
Port Adelaide +25 v Brisbane Lions

reckon you underrated north here. they're a team that typically wins shootouts and they showed serious toughness against the bulldogs and their no 1 ranked defense. it shows that their football will stand up in finals.

not sure i'd give GWS rank 1 just yet. their away form isn't impressive enough to warrant that. i'd have sydney ahead of them.

but overall pretty good rankings.
 
Ratings possibly too reactive week-to-week, so won't give a solid forecast, if that's a desired outcome of your rankings. Otherwise it behaves pretty much the same as all other power ratings out there.

Wasn't it 30% emphasis on the game just played? That isn't really form.

The last match is about 17%. The last three total about 45%, which might be why GWS are rated so highly - their last three have been blinders.
 

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Mark I - Results, Ladder and Predictions: Round 7

Richmond v Hawthorn +29
Collingwood +3 v Carlton
Geelong +26 v West Coast
Sydney +53 v Essendon
Gold Coast v Melbourne +1 (really nothing in this one)
Western Bulldogs +10 v Adelaide
Fremantle v GWS +34
St Kilda v North Melbourne +19
Port Adelaide +12 v Brisbane Lions

8/9 on win-loss. Heavily understated the Melbourne and Port margins. Otherwise, a pretty good set.

1. Geelong 31.4 (+1)
2. GWS 29.5 (-1)
3. Sydney 22.5
4. Western Bulldogs 15.8 (+1)
5. North Melbourne 14.3 (-1)
6. Adelaide 12.1
7. Hawthorn 8.0 (+1)
8. West Coast 6.7 (-1)
9. Melbourne 4.4 (+1)
10. Port Adeaide 1.9 (+1)
11. St Kilda 0.9 (-2)
12. Fremantle -16.5 (+3)
13. Carlton -17.2 (+3)
14. Collingwood -18.1
15. Gold Coast -19.55 (-2)
16. Brisbane -19.6 (-4)
17 Richmond -27
18 Essendon -29.6


Thanks to Final Siren for picking up a few typos in my spreadsheet. The changes to the numbers aren't massive, but it might explain odd changes this week.

Adelaide v Geelong +13
Essendon v North Melbourne +44
Hawthorn +33 v Fremantle
GWS +58 v Gold Coast
Brisbane +4 v Collingwood
Richmond v Sydney +45
Carlton v Port Adelaide +13
Melbourne v Western Bulldogs +11
West Coast +15 v St Kilda
 
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Mark II: Results, Ladder and Predictions - Round 7

Richmond v Hawthorn +33
Collingwood +8 v Carlton
Geelong +19 v West Coast
Sydney +68 v Essendon
Gold Coast v Melbourne +9
Western Bulldogs +4 v Adelaide
Fremantle v GWS +31
St Kilda v North Melbourne +25
Port Adelaide +25 v Brisbane Lions

Again, 8/9 on win-loss, which is not surprising since it made the same 9 tips.

1. Geelong 28.4 (+2)
2. GWS 26.4 (-1)
3. Sydney 21.1 (-1)
4. Western Bulldogs 13.1 (+1)
5. Hawthorn 12.7 (+3)
6. North Melbourne 9.7
7. Adelaide 8.2 (-3)
8. West Coast 7.9 (-1)
9. Port Adelaide 2.8
10. Melbourne -3.6
11. St Kilda -7.6
12. Fremantle -18.6 (+1)
13. Brisbane -24.16 (-1)
14. Collingwood -24.22 (+1)
15. Richmond -25.1 (-1)
16. Carlton -26.5 (+1)
17. Gold Coast -30.5 (-1)
18. Essendon -39.6

As the season progresses, Mark I and Mark II will converge - after every team has played 13 matches they'll be the same. So, the ladders and tips will become more similar week by week.


Adelaide v Geelong +14
Essendon v North Melbourne +49
Hawthorn +40 v Fremantle
GWS +66 v Gold Coast
Brisbane +6 v Collingwood
Richmond v Sydney +41
Carlton v Port Adelaide +18
Melbourne v Western Bulldogs +17
West Coast +24 v St Kilda
 
Hobbes
Where have you gone.
Do you have your update after round 8.

Sorry, my internet was down for a few days.

Mark I after round 8 - results, ladder and predictions.

Adelaide v Geelong +13
Essendon v North Melbourne +44
Hawthorn +33 v Fremantle
GWS +58 v Gold Coast
Brisbane +4 v Collingwood
Richmond v Sydney +45
Carlton v Port Adelaide +13
Melbourne v Western Bulldogs +11
West Coast +15 v St Kilda

6/9 here is probably pretty typical - Carlton, Richmond and Collingwood were tough to pick. Well maybe not Collingwood, but they can't even be reliably rubbish.

1. Geelong +34.6
2. GWS +30.4
3. West Coast +17.6 (+5)
4. Sydney +16.8 (-1)
5. Western Bulldogs +16.3 (-1)
6. Hawthorn +10.5 (+1)
7. Adelaide +10.3 (-1)
8. North Melbourne +7.6 (-3)
9. Melbourne +1.2
10. Port Adelaide -0.7
11. Collingwood -6.8 (+3)
12. St. Kilda -7.5 (-1)
13. Carlton -12.5
14. Fremantle -17.1 (-2)
15. Richmond -19.0 (+2)
16. Gold Coast -24.5 (-1)
17. Essendon -26.1 (+1)
18. Brisbane -31.1 (-2)

North Melbourne still isn't rated. The last two results have been small wins against weak teams, and Adelaide's losses to good teams rate as stronger results.

Hawthorn v Sydney +1
Collingwood v Geelong +41
Gold Coast v Adelaide +25
Port Adelaide v West Coast +5
North Melbourne +20 v Carlton
Fremantle +11 v Richmond
Melbourne +38 v Brisbane
GWS +19 v Western Bulldogs
St Kilda +19 v Essendon
 
Sorry, my internet was down for a few days.

Mark I after round 8 - results, ladder and predictions.

Adelaide v Geelong +13
Essendon v North Melbourne +44
Hawthorn +33 v Fremantle
GWS +58 v Gold Coast
Brisbane +4 v Collingwood
Richmond v Sydney +45
Carlton v Port Adelaide +13
Melbourne v Western Bulldogs +11
West Coast +15 v St Kilda

6/9 here is probably pretty typical - Carlton, Richmond and Collingwood were tough to pick. Well maybe not Collingwood, but they can't even be reliably rubbish.

1. Geelong +34.6
2. GWS +30.4
3. West Coast +17.6 (+5)
4. Sydney +16.8 (-1)
5. Western Bulldogs +16.3 (-1)
6. Hawthorn +10.5 (+1)
7. Adelaide +10.3 (-1)
8. North Melbourne +7.6 (-3)
9. Melbourne +1.2
10. Port Adelaide -0.7
11. Collingwood -6.8 (+3)
12. St. Kilda -7.5 (-1)
13. Carlton -12.5
14. Fremantle -17.1 (-2)
15. Richmond -19.0 (+2)
16. Gold Coast -24.5 (-1)
17. Essendon -26.1 (+1)
18. Brisbane -31.1 (-2)

North Melbourne still isn't rated. The last two results have been small wins against weak teams, and Adelaide's losses to good teams rate as stronger results.

Hawthorn v Sydney +1
Collingwood v Geelong +41
Gold Coast v Adelaide +25
Port Adelaide v West Coast +5
North Melbourne +20 v Carlton
Fremantle +11 v Richmond
Melbourne +38 v Brisbane
GWS +19 v Western Bulldogs
St Kilda +19 v Essendon
Does your model include home ground advantage and if so how many points?

The swans prediction is interesting
 
Adelaide v Geelong +14
Essendon v North Melbourne +49
Hawthorn +40 v Fremantle
GWS +66 v Gold Coast
Brisbane +6 v Collingwood
Richmond v Sydney +41
Carlton v Port Adelaide +18
Melbourne v Western Bulldogs +17
West Coast +24 v St Kilda

Same 6/9 as the Mark I.

1. Geelong +31.2
2. GWS +27.1
3. West Coast +16.6 (+5)
4. Sydney +15.1 (-1)
5. Hawthorn +13.8
6. Western Bulldogs +11.9 (-2)
7. Adelaide +5.2
8. North Melbourne +4.1 (-2)
9. Port Adelaide -1
10. Melbourne -4.4
11. Collingwood -10.9 (+3)
12. St Kilda -13.6 (-1)
13. Richmond -18.11 (+2)
14. Carlton -18.83 (+2)
15. Fremantle -18.84 (-3)
16. Essendon -32.81 (+2)
17. Gold Coast -32.85
18. Brisbane -35.3 (-5)

Hawthorn +3 v Sydney
Collingwood v Geelong +42
Gold Coast v Adelaide +28
Port Adelaide v West Coast +4
North Melbourne +23 v Carlton
Fremantle +8 v Richmond
Melbourne +31 v Brisbane
GWS +21 v Western Bulldogs
St Kilda +19 v Essendon
 

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Does your model include home ground advantage and if so how many points?

The swans prediction is interesting

For interstate matches only (using the home state of the team as the guide) the home ground advantage will be the sum of the values for the two states involved:

Victoria 1
NSW 4
SA, Qld 5
WA 8

I think I calculated these on the 2014 season, and I'm running with it for now. I was surprised that Victorian teams seemed to have the smallest differential between home and away. I'm fairly sure that it matters which states are involved, particularly WA.

(I'd be interested to see if the squiggle has tried anything like this)
 
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For interstate matches only (using the home state of the team as the guide, the home ground advantage will be the sum of the values for the two states involved:

Victoria 1
NSW 4
SA, Qld 5
WA 8

I think I calculated these on the 2014 season, and I'm running with it for now. I was surprised that Victorian teams seemed to have the smallest differential between home and away. I'm fairly sure that it matters which states are involved, particularly WA.

(I'd be interested to see if the squiggle has tried anything like this)
Thanks for response.
 
Mark I - Results, Ladder and Predictions, Round 9

Hawthorn v Sydney +1
Collingwood v Geelong +41
Gold Coast v Adelaide +25
Port Adelaide v West Coast +5
North Melbourne +20 v Carlton
Fremantle +11 v Richmond
Melbourne +38 v Brisbane
GWS +19 v Western Bulldogs
St Kilda +19 v Essendon

7/9. I don't think that anybody saw Collingwood coming. Fremantle seem to be digging a bigger hole every week. A little lucky to get close predictions like West Coast and Sydney right.

1. GWS +30.4 (+1)
2. Geelong +25.5 (-1)
3. West Coast +20.1
4. Sydney +19.1
5. Western Bulldogs +16.2
6. Adelaide +13.7 (+1)
7. North Melbourne +12.0 (+1)
8. Hawthorn +9.0 (-2)
9, Melbourne +5.3
10. Collingwood +2.7 (+1)
11. St Kilda -1.7 (+1)
12. Port Adelaide -2.1 (-2)
13. Richmond -11.0 (+2)
14. Carlton -18.0 (-1)
15. Fremantle -24.2
16. Essendon -29.9 (+1)
17. Gold Coast -33.1 (-1)
18. Brisbane -34.0

And, predictions:

Sydney +13 v North Melbourne
Brisbane v Hawthorn +37
Melbourne +13 v Port Adelaide
St Kilda +31 v Fremantle
Essendon v Richmond +19
Adelaide v GWS +8
Carlton v Geelong +43
Collingwood v Western Bulldogs +13
West Coast +66 v Gold Coast
 
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Mark II - Results, Ladder, Predictions and Ladder Predictor

Hawthorn +3 v Sydney
Collingwood v Geelong +42
Gold Coast v Adelaide +28
Port Adelaide v West Coast +4
North Melbourne +23 v Carlton
Fremantle +8 v Richmond
Melbourne +31 v Brisbane
GWS +21 v Western Bulldogs
St Kilda +19 v Essendon

6/9 this time. The model using last year's results got the Hawthorn match wrong.

1. GWS +28.5 (+1)
2. Geelong +24 (-1)
3. West Coast +20
4. Sydney +18.2
5. Western Bulldogs +13.5 (+1)
6. Adelaide +12.5 (+1)
7. Hawthorn +12 (-2)
8. North Melbourne +10.4
9. Melbourne +1.8 (+1)
10. Collingwood +0.1 (+1)
11. Port Adelaide -1.8 (-2)
12. St Kilda -5.8
13. Richmnd -9.6
14. Carlton -21.9
15. Fremantle -24.1
16. Essendon -33.9
17. Brisbane -36.6
18. Gold Coast -38.2

Sydney +13 v North Melbourne
Brisbane v Hawthorn +43
Melbourne +10 v Port Adelaide
St Kilda +27 v Fremantle
Essendon v Richmond +24
Adelaide v GWS +7
Carlton v Geelong +46
Collingwood v Western Bulldogs +13
West Coast +71 v Gold Coast

I think that +71 is my biggest margin prediction yet - the product of a good team, a woeful team and the maximum home ground advantage modifier.
 
Mark I - Results, Ladder and Predictions

Sydney +13 v North Melbourne
Brisbane v Hawthorn +37
Melbourne +13 v Port Adelaide
St Kilda +31 v Fremantle
Essendon v Richmond +19
Adelaide v GWS +8
Carlton v Geelong +43
Collingwood v Western Bulldogs +13
West Coast +66 v Gold Coast

6/9.

1. GWS +26.8
2. Sydney +21.8 (+3)
3. West Coast +20.7 (+1)
4. Adelaide +17.8 (+2)
5. Geelong +17.5 (-3)
6. Western Bulldogs +16.7 (-1)
7. Hawthorn +11 (+1)
8. North Melbourne +10.9 (-1)
9. Port Adelaide +6.5 (+3)
10. Collingwood +1.4
11. St Kilda -2.8
12. Melbourne -4.1 (-3)
13. Richmond -6.5
14. Carlton -8.0
15. Fremantle -23.9
16. Essendon -32.5
17. Gold Coast -35.8
18. Brisbane -37.5

Carlton hasn't gained any places, but has aligned themselves with the not-quite-finals bunch instead of the bottom-4 bunch.

Predictions:

North Melbourne +17 v Richmond
Hawthorn +15 v Melbourne
Carlton +36 v Brisbane
Geelong v GWS +4
Gold Coast v Sydney +49
Fremantle +18 v Essendon
Collingwood +1 v Port Adelaide
Western Bulldogs +5 v West Coast Eagles
Adelaide +27 v St Kilda
 
Mark II - Results, Ladder and Predictions

Sydney +13 v North Melbourne
Brisbane v Hawthorn +43
Melbourne +10 v Port Adelaide
St Kilda +27 v Fremantle
Essendon v Richmond +24
Adelaide v GWS +7
Carlton v Geelong +46
Collingwood v Western Bulldogs +13
West Coast +71 v Gold Coast

Same tips as Mark I (the two systems are increasingly convergent - after round 14 they will be the same), same 6/9.

1. GWS +25.6
2. Sydney +20.7 (+2)
3. West Coast +19.6
4. Geelong +16.7 (-2)
5. Adelaide +16.3 (+1)
6. Western Bulldogs +14.6 (-1)
7. Hawthorn +12.7
8. North Melbourne +10.4
9. Port Adelaide +6.7 (+2)
10. Collingwood -0.4
11. Melbourne -5.3 (-2)
12. St Kilda -5.4
13. Richmond -6.4
14. Carlton -10.3
15. Fremantle -24.6
16. Essendon -34.1
17. Gold Coast -38.3
18. Brisbane -38.6

Predictions:

North Melbourne +17 v Richmond
Hawthorn +18 v Melbourne
Carlton +34 v Brisbane
Geelong v GWS +3
Gold Coast v Sydney +50
Fremantle +18 v Essendon
Collingwood v Port Adelaide +1
Western Bulldogs +4 v West Coast Eagles
Adelaide +28 v St Kilda
 

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