This page explains how Doytcho Doytchev (USATT# 92501)'s rating went from 1939 to 1925 at the LYTTC Friday Pro League event from 17 Mar 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.