This page explains how Ivan Manchev (USATT# 270195)'s rating went from 1363 to 1362 at the Central Carolinas Super League event from 20 May 2021. 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.