This page explains how John Oh (USATT# 48388)'s rating went from 1730 to 1731 at the St. Louis Round Robin Spring O held on - 30 Apr 1994. 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.