This page explains how Leyang Zeng (USATT# 266557)'s rating went from 1637 to 1630 at the NJTTC Thursday Adv League event from 9 Feb 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.