Ratings – Alternative system
The main idea behind this rating is that victories can be carried over: if player A wins player B and player B wins player C there is a good chance that player A wins player C. The chance depends on win/loss ratio and the number of games played.
It’s also assumed that different maps test different “amount” of player skill. Games on small maps end faster and have lower number of tactic and strategic decisions made by players. Due to this reason a game on New Paradise influences your score more than a battle on Emerald.
It’s also assumed that a player can have a bad setup of allies. So the rating encourages players to know when to retreat from battle and decreases the significance of those matches that were ended in few turns. In general 3 turns are allowed on small maps(20% value), 4 turns on medium (Anubis, Noble Rust) for 30% value and 5 turns on large (Wasserland, New Paradise)(40% value) to decide whether you want to play. The value of a game reaches 100% at turn 5,6,7 respectively.
The last but not the least feature: it reduces the significance of old games to represent your current skill, not your average skill.
This alternative rating system is much fair in terms of identifying the strongest player of Massive Assault Network then the one experience-based used in game. So the best way to take the first place is to challenge a player from top-20 and win.
More info: http://www.massiveassaultnetwork.com/ratings.php