This page explains how RAYMOND D. SPANN (USATT# 10171)'s rating went from 1624 to 1607 at the Lakeland Table Tennis League event from 18 Feb 2007. 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.