This page explains how David Tan (USATT# 1174582)'s rating went from 1087 to 1140 at the 2023 USATT Ohio State Championships held on 29 Dec 2023 - 30 Dec 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.