Sean Patrick O'Neill
USATT#: 8840
| Coach Level: National | Certified Umpire
2610 2597
Potomac Spring Open
- 16 Apr 1995
- 16 Apr 1995
This page explains how Sean Patrick O'Neill (USATT# 8840)'s rating went from 2610 to 2597 at the Potomac Spring Open held on - 16 Apr 1995. 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.