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-   -   Power Ratings (http://forums.ozmium.com.au/showthread.php?t=6330)

Benny 8th November 2004 04:08 PM

I hear a lot about the use of power ratings in the NFL. How could one apply the use of power ratings to the AFL?

Any suggestions?

Benny

thebookie 8th November 2004 07:33 PM

What are Power Ratings, Benny?

Mr J 9th November 2004 03:15 AM

Power ratings are assigning a number to a team, the subracting the number of the opposing team to get the spread. You add adjust the number each week depending on home advantage, injuries, form etc.

sportznut 9th November 2004 09:42 AM

Yep, me and Moeee do this sort of thing already. I'm sure others do too. These were my last set of ratings from before each of the Grand Finals this year:

AFL
126 Port Adel
126 Brisbane
120 St Kilda
117 Geelong
111 Sydney
108 West Coast
105 Essendon
102 Melbourne
96 Fremantle
96 Kangaroos
93 Carlton
90 Collingwood
90 Adelaide
81 West B'dogs
81 Hawthorn
72 Richmond

NRL
36 Bulldogs
34 Syd Roosters
30 Penrith
28 NQ Cowboys
28 Melbourne
28 St Geo/Ill
24 Brisbane
22 Canberra
22 West Tigers
20 Sharks
20 Newcastle
18 Parramatta
18 Manly
14 NZ Warriors
12 Souths

Super12
42 Brumbies
35 Crusaders
31 Stormers
31 Chiefs
31 Blues
28 Bulls
28 Waratahs
24 Sharks
24 Reds
21 Highlanders
21 Hurricanes
10 Cats

To the teams' ratings I then add a bonus for home ground advantage depending on where the game is being played:
AFL: 0,6,12,or 18 pts
NRL: 0,2,4, or 6 pts
S12: 0,3,7 or 10 pts

There may also be some points added or subtracted depending on injuries or suspensions, or one team having a decided head to head advantage over the other.

The final points difference between the two teams is the predicted margin in the game. Well, that's the way it's supposed to work anyway.


[ This Message was edited by: sportznut on 2004-11-09 11:26 ]

moeee 9th November 2004 10:17 AM

Gee Sportznut,you make me feel homesick.
C'mon 2005 AFL season.
Sportznut,if I can hurry up and lose all my money on the greyhounds,I will then have time to not only refine my footy ratings,but in fact attempt to rate every player.
I will be using Champion Data Ratings as a major base.
Are you aware of these ratings Sportznut?

sportznut 9th November 2004 10:23 AM

I've heard of them but I don't think I'd ever go to the lengths of rating each player. How do they work?


[ This Message was edited by: sportznut on 2004-11-09 11:25 ]

sportsmad 9th November 2004 10:30 AM

Quote:
On 2004-11-09 11:23, sportznut wrote:
I've heard of them but I don't think I'd ever go to the lengths of rating each player. How do they work?



This link might enlighten a few on the subject

http://www.swin.edu.au/maths/main/p...8Teamstats.html




Also this link if allowed to post, although a PDF file


http://www.championdata.com.au/files/rankings.pdf

_________________


[ This Message was edited by: sportsmad on 2004-11-09 11:35 ]

Benny 9th November 2004 03:40 PM

How do i go about compling the ratings? What information do i use?

Benny

sportznut 9th November 2004 03:46 PM

If you're talking about the sort of ratings that I use, then I'm afraid it's all just personal opinion with a little help from statistics and ladder positions.

rabbitz 9th November 2004 04:12 PM

Quote:
On 2004-11-09 11:17, moeee wrote:
Gee Sportznut,you make me feel homesick.
C'mon 2005 AFL season.

MOEEE WE ARE HAVING A TIPPING COMP NEXT YEAR
WHAT ABOUT A MULTI COMP
YOU INTERESTED????
Sportznut,if I can hurry up and lose all my money on the greyhounds,I will then have time to not only refine my footy ratings,but in fact attempt to rate every player.
I will be using Champion Data Ratings as a major base.
Are you aware of these ratings Sportznut?




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