This page explains how Kai Zarehbin (USATT# 91905)'s rating went from 1902 to 2180 at the LYTTC Friday Pro League event from 28 Apr 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.