ИКЧФ
As of March 31, 2005, Berliner still had by far the highest International Correspondence Chess Federation (ICCF) rating of any player in the United States, at 2726, 84 points above the second-highest rated player. Berliner's 2726 rating places him third on the ICCF's world list, behind Joop van Oosterom (2741) and Ulf Andersson (2736).