This page explains how Eric Duquette (USATT# 13251)'s rating went from 1270 to 1250 at the Pong Planet Friday Night, Tuesday Night, And Saturday Leagues event from 3 Feb 2015. 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.