This page explains how Dat Nguyen (USATT# 76313)'s rating went from 1885 to 1880 at the Austin Table Tennis League event from 3 Oct 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.