This page explains how Harry Song (USATT# 279300)'s rating went from 1270 to 1310 at the LATTA Butterfly Thanh Banh Memorial Open Jan 2024 held on 27 Jan 2024 - 27 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.