This page explains how Daniel T. Marinas (USATT# 55271)'s rating went from 1288 to 1239 at the North Bay Table Tennis League event from 21 Nov 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.