This page explains how Hector Laureano (USATT# 216488)'s rating went from 1893 to 1888 at the Long Island Table Tennis Center - No Longer Open event from 8 Dec 2017. 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.