\u03c3<\/b><\/span> in the picture).<\/li>\n<\/ul>\nThe ranking system maintains a belief <\/b>in every gamer’s skill using these two numbers. If the uncertainty is still high, the ranking system does not yet know exactly the skill of the gamer. In contrast, if the uncertainty is small, the ranking system has a strong belief that the skill of the gamer is close to the average skill.<\/p>\n
On the side, a belief curve of the TrueSkill ranking system is drawn. For example, the green area is the belief of the TrueSkill ranking system that the gamer has a skill between level 15 and 20.<\/p>\n
Maintaining an uncertainty allows the system to make big changes to the skill estimates early on but small changes after a series of consistent games has been played. As a result, the TrueSkill ranking system can identify the skills of individual gamers from a very small number of games. The following table gives an idea of the minimum number of games per gamer that the system needs to identify the skill level:<\/p>\n
\n\n\nGame Mode<\/strong><\/td>\nNumber of Games per Gamer<\/strong><\/td>\n<\/tr>\n\n16 Players Free-For-All<\/td>\n | 3<\/td>\n<\/tr>\n | \n8 Players Free-For-All<\/td>\n | 3<\/td>\n<\/tr>\n | \n4 Players Free-For-All<\/td>\n | 5<\/td>\n<\/tr>\n | \n2 Players Free-For-All<\/td>\n | 12<\/td>\n<\/tr>\n | \n4 Teams\/2 Players Per Team<\/td>\n | 10<\/td>\n<\/tr>\n | \n4 Teams\/4 Players Per Team<\/td>\n | 20<\/td>\n<\/tr>\n | \n2\u00a0Teams\/4 Players Per Team<\/td>\n | 46<\/td>\n<\/tr>\n | \n2\u00a0Teams\/8 Players Per Team<\/td>\n | 91<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n <\/p>\n The actual number of games needed per gamer can be up to three times higher depending on several factors such as the variation of the performance per game, the availability of well-matched opponents, the chance of a draw, etc. If you want to learn more about how these numbers are calculated and how the TrueSkill ranking system identifies players’ skills, please read the\u00a0Detailed Description of the TrueSkill\u2122Ranking Algorithm or find out in the Frequently Asked Questions.<\/p>\n Matching Players<\/h1>\nIf you play a ranked game on Xbox Live, the TrueSkill ranking system will compare your individual skill (the numbers \u03bc<\/b><\/span> and \u03c3<\/b><\/span>) with the skills of all the game hosts for that game mode on Xbox Live and automatically match you with players with skill similar to your own. But how can this be done when every player’s skill is represented by two <\/b>numbers? The trick is to use the (hypothetical) chance of drawing with someone else: If you are likely to draw with another player then that player is a good match for you! Sounds simple? It is!<\/p>\n\t\t\t\n\t\t\t\t\t\t\t \n\t\t\t\t\t \n\t\t\t\t\t\t | | |