This page explains how Preston Nichols (USATT# 271121)'s rating went from 834 to 845 at the 2023 TT&M's Butterfly Summer Open held on 2 Jun 2023 - 4 Jun 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.