This page explains how Owen Xiao (USATT# 278221)'s rating went from 950 to 933 at the Spttc Saturday Junior League event from 13 Jan 2024. 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.