We compute on a daily basis the top overall users in each sport at GameDayRitual. Users are scored on three criteria - Success, Experience, and Activity - which are averaged together for a final score.

Score Ranges
Each subscore and final score range are in the range (.000 - .999), with .999 being the maximum possible (best) score. These values are computed based on rankings, which themselves are based on other attributes (ie win percentage for the Success score) See each section for details on the criteria used. The rankings are mapped to the (.000 - .999) range by dividing your rank from the total number of users, and subtracting that value from 1. So, for example, if you had the 50th best win percentage at GameDayRitual amongst, say 1000 users, your Success score would be 1 - (50/1000) = .950 .

Year Weightings
Each year is weighted to produce your current totals. The current year is weighted 1, with each season n-years-ago weighted 1/(n+1). In this manner, experience you accrued many year ago will still count towards your score, but recent years will be weighted more heavily.

New Users
A new user will enter with a score of .333, as they are assigned a 'virtual' winning percentage of .500 until they have a true W-L record, and are assumed to be 'active' at the average rate until they have a chance to prove otherwise. They will therefore score .500 for Success, .500 for Activity, and .000 for experience, which averages to .333 .

Each team in every league you are in or have completed sees their win percentage contribute to your Success score. Each league is weighted equally within a given year regardless of "attendance" and other league options, and each year is weighted 1/(n+1) where n is the number of years in the past a season took place.

Each team in every league you have ever played or are currently playing contributes to your Experience score. Each team you've played is weighted equally within a given year, and each year is weighted 1/(n+1) where 'n' is the number of years in the past that a season took place.

The number of transactions you've made in each league you have ever played or are currently playing contributes to your Experience score. Your base Activity Score is calculated by:
(# Roster Moves) + 3 x (# Free Agents Signed) + 10 x (# Players Traded)

This base score is ranked (just like the other categories), and your place in the rankings is mapped to the range (0.000 - 0.999). The activity of each team you've played is weighted equally within a given year, and each year is weighted 1/(n+1) where 'n' is the number of years in the past that a season took place.