From the previous rating information below I think most people have assuming a Trueskill like rating system.
http://forum.dominionstrategy.com/index.php?topic=4321.msg95643#msg95643How are ratings calculated? - Each player gets a rating between zero and ten thousand. All registered players are rated the same way, including the bots. The system for calculating ratings is pretty complicated and dependent on quite a few factors, so I'm going to kind of go through some of those factors. First the ratings are just based on what place you came in rather than how many victory points you won by. If the game is resigned it's viewed as a loss. It doesn't matter if you came in at a hundred points or two points, its all rated the same. Ratings are also adjusted based on the ratings of your opponents, so beating a higher rated opponent will help ratings much more than beating a lower rated opponent. The system is conservative in it's calculations, so it is reasonably sure you deserve the rating work before it awards it. In other words, your rating may be low when you haven't played many games and rise as the system gains more confidence that you deserve the higher rating. Your rating will fluctuate more when the system has little data about how skillful you are. So the first couple games you play your ratings are going to be all over the place. As you play more games your rating is only going to slowly move up and down. Unexpected results, such as a win over a higher rated opponent, affects the rating most, so play someone that's much better than you and win and your rating might go pretty high. Your rating will fluctuate more with results against players with more established ratings. So pretty much the more you play, the more established your rating is going to get, and playing against the other players with established ratings is going to be the best way to improve your score.
http://forum.dominionstrategy.com/index.php?topic=4895.msg115363#msg115363+4 - How does the rating system actually work? Numbers and formulas please.
Our rating system function very similarly to Isotropic’s. However, players in Goko’s Dominion start at 1000 points instead of 0. As you play more, your actual rating becomes more clear to our formula. So your rating will start to fluctuate less. Your rating, a number from 0 to 10,000, is shown in the Rating column of the leaderboard. A number in parentheses indicates the number of points rating points you gained or lost in your last game.
A "P" indicates that your rating is "provisional", i.e. the system does not yet have a good estimate of your ability. While you are provisional, you'll see your rating in the leaderboard, but nobody else will. We do this because the initial standard deviation is so high.
Ratings are adjusted based on the following:
* What place you come in and how many players are in the game.
* The ratings of your opponents (The higher the level of your opponent the more you’ll move up)
Ratings are not adjusted based on the following:
* How many points you win by
* Number of turns