Jack Cheng
USATT#: 270749
| Certified Umpire
1249 1207
2023 HITTA Butterfly Spring Tournament
18 Mar 2023 - 19 Mar 2023
18 Mar 2023 - 19 Mar 2023
This page explains how Jack Cheng (USATT# 270749)'s rating went from 1249 to 1207 at the 2023 HITTA Butterfly Spring Tournament held on 18 Mar 2023 - 19 Mar 2023. The links below take you to pages that describe various aspects of the rating processor.
Introduction
Initial Rating
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.