This page explains how Jonathan Hirata (USATT# 70449)'s rating went from 889 to 1482 at the LYTTC April Open held on - 15 Apr 2012. The links below take you to pages that describe various aspects of the rating processor.

The rating processor goes through 4 passes in order. The links take you to pages that provide detailed explanations of the calculations during each of the 4 passes.