This page explains how Adam Champa (USATT# 1171325)'s rating went from n/a to 689 at the Spin & Smash Spring Open held on 9 Apr 2021 - 11 Apr 2021. 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.