This page explains how Ivan Manchev (USATT# 270195)'s rating went from 1519 to 1510 at the Central Carolinas Super League event from 5 Oct 2023. 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.