grenv: At GoldToken there is a clock value shown for each player which gives the amount of time that the game was waiting for that player. Although there's no average available, examination of a few games can show you whether a player is a cheetah or a sloth.

Here, for instance, is a perhaps an extreme example, but one that would pale against some of the BrainKing players, - a player who has taken 105 days versus his opponent who has taken only 16.
http://www.goldtoken.com/games/play?g=4665387