Hi Mark --
I invite you to email me at
mpage@fargorate.com if you want me to look into some of these individuals specifically.
For here, though, I will explain why there is sometimes a difference between fairmatch.fargorate.com and playcsipool.com.
We use the number of games that contribute to the rating (what we call the robustness) as a measure of the reliability of the rating, and we have chosen a robustness of 200 as indicating an "established" rating. Established ratings are the same on our site and the CSI site.
Ratings based on only a few games are volatile and often unreliable. We display them anyway on our site (in a different color, to indicate they are preliminary) Note the first guy, with only 44 games and the second guy with over 400 games.
Players with no games or with some games but not enough to be established will play at nationals with an "effective Fargo Rating." This is a weighted average of the emerging Fargo Rating (ours) and a starter rating that is based on the old open, advanced, etc classification.
In general 200 is enough games to get a reliable rating. But Fargo Ratings work by assessing your performance against opponents of known rating. So in some cases a player might have 200 games but the majority of them are against opponents who themselves only have a few games in the system. The interesting thing here, is the rating of the first player will get more reliable in time even without playing more. That is because as the former opponents play more, FargoRate does some great Monday-morning-quarterbacking---it gets better at interpreting the past games.
More data is always better...