I remember one of the computers once hit 3508 at blitz on ICC (eek!).
Whats the highest rating youve seen?
If you mean in Chess.com, probably "only" a 2400 or so. In real life, I once saw two GM's play at a tournament, one was around 2750 and the other 2675.


Has anyone seen a 9999?
Now that you mention it, I've seen some over 10,000 on yahoo. They get multiple accounts and play thousands of games, one ID dumping all its points into another over and over.

The highest-rated guy I've ever played USCF was 2679 (DeFirmian).
How'd you do?
He probably won in about 10 moves.
What is it?