US Open has always been severely criticized in the past due to lack of fundings and poor management, reasons why many top grandmasters shy away from participating in one of the oldest chess tournament in the world. Days after the start of round 1 of the 2010 US Open, Dylan Loeb McClain of New York Times Chess Blog criticized the lack of determination on the part of USCF to attract more top international and local players to compete in the tournament.
Which country has the bigger, stronger national open championship: the United States or the Czech Republic? The Czech Republic, and it is not even close.
The reason that the Czech Open was bigger was that most of the players were from other countries. For example, the winner, Anton Korobov, who was the top seed, is from Ukraine. And the players who tied for second through sixth were from Ukraine, Russia (2), Sweden and India. The U.S. Open simply does not attract many foreign players.
2010 US Open final standings
US Open Official Website