This page explains how Thong Lam (USATT# 20034)'s rating went from 1552 to 1557 at the 2023 FREMONT BUTTERFLY APRIL OPEN held on 28 Apr 2023 - 30 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.