This page explains how Harry Tan (USATT# 271147)'s rating went from 1494 to 1481 at the 888TTC SILICON VALLEY WINTER CUP 2023 held on 8 Dec 2023 - 10 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.