This page explains how Abdullah Al Mursalin (USATT# 281194)'s rating went from 1901 to 1890 at the West Jersey Table Tennis Club League event from 18 Jan 2024. 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.