This page explains how Kevin Zywicki (USATT# 90515)'s rating went from 1858 to 1830 at the IndyPong December Open held on 2 Dec 2023 - 2 Dec 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.