This page explains how William Lagozzino (USATT# 16801)'s rating went from 1237 to 1238 at the West Central Table Tennis event from 21 Jan 2018. 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.