Billiard Industry needs

[fuggles]

That is a great start! Now let me do that on the web site, and let me download results.

I have no influence on the software. And I would like to be able to download my fargo rate vs time.

 

[mikepage]

How can you "solve" this island problem? If no one leaves the island, then still a problem. When players leave the island the problem is already solved.

Yes. But the more interesting case is almost islands. A Presque-isle is an "almost island," a peninsula with a thin neck. And it becomes interesting not only what happens to the few players who leave but also the larger number who stay.
Here is a quiz.
In the scenario below,

(1) What happens to Bill's rating?
(2) What happens to the ratings of the other 29 NowhereVillians
(3) (optional extra points) How would your answers to (1) and (2) change if you were talking about an Elo rating approach, like FIDE, Glicko, or the various pool implementations