This page explains how Samuel James Darling (USATT# 28770)'s rating went from 1630 to 1631 at the West Michigan Table Tennis event from 1 Dec 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.