This page explains how Roman A Zapata (USATT# 97942)'s rating went from 1055 to 1053 at the Mastiff Table Tennis Club event from 14 May 2022. 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.