This page explains how Huafeng Fan (USATT# 1173928)'s rating went from 1113 to 1125 at the LYTTC April Open 2023 held on 8 Apr 2023 - 9 Apr 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.