This page explains how Mario Davila (USATT# 21199)'s rating went from 1990 to 1984 at the Glen Head Table Tennis Center Saturday Night League event from 28 Jul 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.