Gregg Robertshaw
USATT#: 9501
| Coach Level: State | Certified Umpire
2027 1943
2022 Butterfly Teams Tournament
29 Jan 2022 - 30 Jan 2022
29 Jan 2022 - 30 Jan 2022
This page explains how Gregg Robertshaw (USATT# 9501)'s rating went from 2027 to 1943 at the 2022 Butterfly Teams Tournament held on 29 Jan 2022 - 30 Jan 2022. 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.