I am telling you it ALWAYS adds up to within 10 of 3300,and how can this be?
Champion Data Rankings: how come every match adds up to 3,300 points?
Before 2004 we simply allocated a set number of points for each statistic, something like the Dream Team formula but with qualitative stats, such as effective kicks (+4), ineffective kicks (0) and clanger kicks (-6). Those base points had been refined through research by Swinburne University on the most important factors in winning a game of football. Over the years we have continued to test them and made minor tweaks and additions as the game evolves and we collect more information about each match.
From 2004 we decided to take “situational” information into account. The research shows that you win more matches by making quality decisions near goal, and when the match is in the balance. For each action in the match, the computer uses a multiplier which involves the position on the field and a “pressure factor” based on the margin and the time left. The pressure factor is basically the effect a player can have on his team’s winning chances by doing the right thing at that time – a game-winning goal is given the highest multiplier, while a handball on the wing when his team is already 80 points ahead gets scaled down.
Once all the numbers are in, we “normalise” them so that the total is 3,300. Each player is given a slice of the pie, in proportion to his total weighted ranking points. This lets us measure a player’s contribution to a match regardless of its speed or overall quality. For SuperCoach it means that Sydney players are worth considering on a level playing field with Bulldogs, even though there are fewer possessions in their matches. It also means that there is no inflation as the game continues to speed up, and a player’s 150 today is as dominant of a total match as 150 was five years ago regardless of game styles and trends.
• Where does 3,300 come from?
o The average match from 2001 to 2003 had about 3,300 points. If we looked at raw base numbers these days, they would have gradually increased just like Dream Team points.
• Not adding up to exactly 3,300?
o Rounding can vary this.
• What’s an average score?
o 3,300 / 44 = 75, so 100+ indicates a good game. 150 means he’s done the job of two average players.
• Someone had 50 points at half time and didn’t come back on the field. How did he finish with only 40? Or 60?
o The normalisation has the effect of concentrating points around the times when the result was decided as one team took control. At half time the computer assumes 1,650 points have been allocated. But if one team has already run away with the match, points from the first half will continue to scale up as a proportion of the pie. Conversely if the match is won very late, points from earlier are scaled down.
http://forum.sportal.com.au/viewthread.aspx?t=54461
