This page explains how Tom Metz (USATT# 73482)'s rating went from 1225 to 1255 at the Rainbow Lakes Table Tennis Club event from 21 Aug 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.